diff --git a/includes/admin/meta-boxes/class-wc-meta-box-product-data.php b/includes/admin/meta-boxes/class-wc-meta-box-product-data.php
index bac1477c223..cf0e2606e62 100644
--- a/includes/admin/meta-boxes/class-wc-meta-box-product-data.php
+++ b/includes/admin/meta-boxes/class-wc-meta-box-product-data.php
@@ -1362,6 +1362,7 @@ class WC_Meta_Box_Product_Data {
 						$unique_sku = wc_product_has_unique_sku( $variation_id, $new_sku );
 
 						if ( ! $unique_sku ) {
+							/* translators: %s: variation id */
 							WC_Admin_Meta_Boxes::add_error( sprintf( __( '#%s – Variation SKU must be unique.', 'woocommerce' ), $variation_id ) );
 						} else {
 							update_post_meta( $variation_id, '_sku', $new_sku );
diff --git a/includes/admin/meta-boxes/views/html-order-item.php b/includes/admin/meta-boxes/views/html-order-item.php
index 84f3cc2151f..d54ef527921 100644
--- a/includes/admin/meta-boxes/views/html-order-item.php
+++ b/includes/admin/meta-boxes/views/html-order-item.php
@@ -29,6 +29,7 @@ $thumbnail    = $product ? apply_filters( 'woocommerce_admin_order_item_thumbnai
 				if ( 'product_variation' === get_post_type( $item->get_variation_id() ) ) {
 					echo esc_html( $item->get_variation_id() );
 				} else {
+					/* translators: %s: variation id */
 					printf( esc_html__( '%s (No longer exists)', 'woocommerce' ), $item->get_variation_id() );
 				}
 				echo '</div>';
diff --git a/includes/admin/meta-boxes/views/html-variation-admin.php b/includes/admin/meta-boxes/views/html-variation-admin.php
index b766cd9b824..1f5168c38ab 100644
--- a/includes/admin/meta-boxes/views/html-variation-admin.php
+++ b/includes/admin/meta-boxes/views/html-variation-admin.php
@@ -30,6 +30,7 @@ extract( $variation_data );
 				$variation_selected_value = isset( $variation_data[ 'attribute_' . sanitize_title( $attribute['name'] ) ] ) ? $variation_data[ 'attribute_' . sanitize_title( $attribute['name'] ) ] : '';
 
 				// Name will be something like attribute_pa_color
+				/* translators: %s: attribute label */
 				echo '<select name="attribute_' . sanitize_title( $attribute['name'] ) . '[' . $loop . ']"><option value="">' . sprintf( __( 'Any %s&hellip;', 'woocommerce' ), esc_html( wc_attribute_label( $attribute['name'] ) ) ) . '</option>';
 
 				// Get terms for attribute taxonomy or value if its a custom attribute
@@ -88,11 +89,23 @@ extract( $variation_data );
 
 			<div class="variable_pricing">
 				<p class="form-row form-row-first">
-					<label><?php printf( __( 'Regular price (%s)', 'woocommerce' ), get_woocommerce_currency_symbol() ); ?></label>
+					<label><?php
+						/* translators: %s: currency symbol */
+						printf(
+							__( 'Regular price (%s)', 'woocommerce' ),
+							get_woocommerce_currency_symbol()
+						);
+					?></label>
 					<input type="text" size="5" name="variable_regular_price[<?php echo $loop; ?>]" value="<?php if ( isset( $_regular_price ) ) echo esc_attr( $_regular_price ); ?>" class="wc_input_price" placeholder="<?php esc_attr_e( 'Variation price (required)', 'woocommerce' ); ?>" />
 				</p>
 				<p class="form-row form-row-last">
-					<label><?php printf( __( 'Sale price (%s)', 'woocommerce' ), get_woocommerce_currency_symbol() ); ?> <a href="#" class="sale_schedule"><?php _e( 'Schedule', 'woocommerce' ); ?></a><a href="#" class="cancel_sale_schedule" style="display:none"><?php _e( 'Cancel schedule', 'woocommerce' ); ?></a></label>
+					<label><?php
+						/* translators: %s: currency symbol */
+						printf(
+							__( 'Sale price (%s)', 'woocommerce' ),
+							get_woocommerce_currency_symbol()
+						);
+					?> <a href="#" class="sale_schedule"><?php _e( 'Schedule', 'woocommerce' ); ?></a><a href="#" class="cancel_sale_schedule" style="display:none"><?php _e( 'Cancel schedule', 'woocommerce' ); ?></a></label>
 					<input type="text" size="5" name="variable_sale_price[<?php echo $loop; ?>]" value="<?php if ( isset( $_sale_price ) ) echo esc_attr( $_sale_price ); ?>" class="wc_input_price" />
 				</p>
 
@@ -170,7 +183,13 @@ extract( $variation_data );
 				<div>
 					<?php if ( wc_product_weight_enabled() ) : ?>
 						<p class="form-row hide_if_variation_virtual form-row-first">
-							<label><?php printf( __( 'Weight (%s)', 'woocommerce' ), esc_html( get_option( 'woocommerce_weight_unit' ) ) ); ?> <?php echo wc_help_tip( __( 'Enter a weight for this variation or leave blank to use the parent product weight.', 'woocommerce' ) ); ?></a></label>
+							<label><?php
+								/* translators: %s: weight unit */
+								printf(
+									__( 'Weight (%s)', 'woocommerce' ),
+									esc_html( get_option( 'woocommerce_weight_unit' ) )
+								);
+							?> <?php echo wc_help_tip( __( 'Enter a weight for this variation or leave blank to use the parent product weight.', 'woocommerce' ) ); ?></label>
 							<input type="text" size="5" name="variable_weight[<?php echo $loop; ?>]" value="<?php if ( isset( $_weight ) ) echo esc_attr( $_weight ); ?>" placeholder="<?php echo esc_attr( $parent_data['weight'] ); ?>" class="wc_input_decimal" />
 						</p>
 					<?php else : ?>
@@ -178,7 +197,13 @@ extract( $variation_data );
 					<?php endif; ?>
 					<?php if ( wc_product_dimensions_enabled() ) : ?>
 						<p class="form-row dimensions_field hide_if_variation_virtual form-row-last">
-							<label for="product_length"><?php printf( __( 'Dimensions (L&times;W&times;H) (%s)', 'woocommerce' ), get_option( 'woocommerce_dimension_unit' ) ); ?></label>
+							<label for="product_length"><?php
+								/* translators: %s: dimension unit */
+								printf(
+									__( 'Dimensions (L&times;W&times;H) (%s)', 'woocommerce' ),
+									get_option( 'woocommerce_dimension_unit' )
+								);
+							?></label>
 							<input id="product_length" class="input-text wc_input_decimal" size="6" type="text" name="variable_length[<?php echo $loop; ?>]" value="<?php if ( isset( $_length ) ) echo esc_attr( $_length ); ?>" placeholder="<?php echo esc_attr( $parent_data['length'] ); ?>" />
 							<input class="input-text wc_input_decimal" size="6" type="text" name="variable_width[<?php echo $loop; ?>]" value="<?php if ( isset( $_width ) ) echo esc_attr( $_width ); ?>" placeholder="<?php echo esc_attr( $parent_data['width'] ); ?>" />
 							<input class="input-text wc_input_decimal last" size="6" type="text" name="variable_height[<?php echo $loop; ?>]" value="<?php if ( isset( $_height ) ) echo esc_attr( $_height ); ?>" placeholder="<?php echo esc_attr( $parent_data['height'] ); ?>" />
@@ -293,11 +318,11 @@ extract( $variation_data );
 			</div>
 			<div class="show_if_variation_downloadable" style="display: none;">
 				<p class="form-row form-row-first">
-					<label><?php _e( 'Download limit', 'woocommerce' ); ?> <?php echo wc_help_tip( __( 'Leave blank for unlimited re-downloads.', 'woocommerce' ) ); ?></a></label>
+					<label><?php _e( 'Download limit', 'woocommerce' ); ?> <?php echo wc_help_tip( __( 'Leave blank for unlimited re-downloads.', 'woocommerce' ) ); ?></label>
 					<input type="number" size="5" name="variable_download_limit[<?php echo $loop; ?>]" value="<?php if ( isset( $_download_limit ) ) echo esc_attr( $_download_limit ); ?>" placeholder="<?php esc_attr_e( 'Unlimited', 'woocommerce' ); ?>" step="1" min="0" />
 				</p>
 				<p class="form-row form-row-last">
-					<label><?php _e( 'Download expiry', 'woocommerce' ); ?> <?php echo wc_help_tip( __( 'Enter the number of days before a download link expires, or leave blank.', 'woocommerce' ) ); ?></a></label>
+					<label><?php _e( 'Download expiry', 'woocommerce' ); ?> <?php echo wc_help_tip( __( 'Enter the number of days before a download link expires, or leave blank.', 'woocommerce' ) ); ?></label>
 					<input type="number" size="5" name="variable_download_expiry[<?php echo $loop; ?>]" value="<?php if ( isset( $_download_expiry ) ) echo esc_attr( $_download_expiry ); ?>" placeholder="<?php esc_attr_e( 'Unlimited', 'woocommerce' ); ?>" step="1" min="0" />
 				</p>
 
diff --git a/includes/admin/reports/class-wc-report-coupon-usage.php b/includes/admin/reports/class-wc-report-coupon-usage.php
index 6af31b992b7..6aaad41ae24 100644
--- a/includes/admin/reports/class-wc-report-coupon-usage.php
+++ b/includes/admin/reports/class-wc-report-coupon-usage.php
@@ -105,12 +105,14 @@ class WC_Report_Coupon_Usage extends WC_Admin_Report {
 		$total_coupons  = absint( $this->get_order_report_data( $total_coupons_query ) );
 
 		$legend[] = array(
+			/* translators: %s: discount ammount */
 			'title' => sprintf( __( '%s discounts in total', 'woocommerce' ), '<strong>' . wc_price( $total_discount ) . '</strong>' ),
 			'color' => $this->chart_colours['discount_amount'],
 			'highlight_series' => 1,
 		);
 
 		$legend[] = array(
+			/* translators: %s: coupons ammount */
 			'title' => sprintf( __( '%s coupons used in total', 'woocommerce' ), '<strong>' . $total_coupons . '</strong>' ),
 			'color' => $this->chart_colours['coupon_count'],
 			'highlight_series' => 0,
diff --git a/includes/admin/reports/class-wc-report-customers.php b/includes/admin/reports/class-wc-report-customers.php
index 95989798419..477369c23b9 100644
--- a/includes/admin/reports/class-wc-report-customers.php
+++ b/includes/admin/reports/class-wc-report-customers.php
@@ -37,6 +37,7 @@ class WC_Report_Customers extends WC_Admin_Report {
 		$legend   = array();
 
 		$legend[] = array(
+			/* translators: %s: signups ammount */
 			'title' => sprintf( __( '%s signups in this period', 'woocommerce' ), '<strong>' . sizeof( $this->customers ) . '</strong>' ),
 			'color' => $this->chart_colours['signups'],
 			'highlight_series' => 2,
diff --git a/includes/admin/reports/class-wc-report-sales-by-product.php b/includes/admin/reports/class-wc-report-sales-by-product.php
index 73eac8739dd..655449e2097 100644
--- a/includes/admin/reports/class-wc-report-sales-by-product.php
+++ b/includes/admin/reports/class-wc-report-sales-by-product.php
@@ -103,12 +103,14 @@ class WC_Report_Sales_By_Product extends WC_Admin_Report {
 		) ) );
 
 		$legend[] = array(
+			/* translators: %s: total items sold */
 			'title' => sprintf( __( '%s sales for the selected items', 'woocommerce' ), '<strong>' . wc_price( $total_sales ) . '</strong>' ),
 			'color' => $this->chart_colours['sales_amount'],
 			'highlight_series' => 1,
 		);
 
 		$legend[] = array(
+			/* translators: %s: total items purchased */
 			'title' => sprintf( __( '%s purchases for the selected items', 'woocommerce' ), '<strong>' . ( $total_items ) . '</strong>' ),
 			'color' => $this->chart_colours['item_count'],
 			'highlight_series' => 0,
diff --git a/includes/admin/settings/class-wc-settings-emails.php b/includes/admin/settings/class-wc-settings-emails.php
index 41264fdab23..86826d373b3 100644
--- a/includes/admin/settings/class-wc-settings-emails.php
+++ b/includes/admin/settings/class-wc-settings-emails.php
@@ -111,6 +111,7 @@ class WC_Settings_Emails extends WC_Settings_Page {
 				'css'         => 'width:300px; height: 75px;',
 				'placeholder' => __( 'N/A', 'woocommerce' ),
 				'type'        => 'textarea',
+				/* translators: %s: site name */
 				'default'     => sprintf( __( '%s - Powered by WooCommerce', 'woocommerce' ), get_bloginfo( 'name', 'display' ) ),
 				'autoload'    => false,
 				'desc_tip'    => true,
@@ -118,6 +119,7 @@ class WC_Settings_Emails extends WC_Settings_Page {
 
 			array(
 				'title'    => __( 'Base colour', 'woocommerce' ),
+				/* translators: %s: default color */
 				'desc'     => sprintf( __( 'The base colour for WooCommerce email templates. Default %s.', 'woocommerce' ), '<code>#96588a</code>' ),
 				'id'       => 'woocommerce_email_base_color',
 				'type'     => 'color',
@@ -129,6 +131,7 @@ class WC_Settings_Emails extends WC_Settings_Page {
 
 			array(
 				'title'    => __( 'Background colour', 'woocommerce' ),
+				/* translators: %s: default color */
 				'desc'     => sprintf( __( 'The background colour for WooCommerce email templates. Default %s.', 'woocommerce' ), '<code>#f7f7f7</code>' ),
 				'id'       => 'woocommerce_email_background_color',
 				'type'     => 'color',
@@ -140,6 +143,7 @@ class WC_Settings_Emails extends WC_Settings_Page {
 
 			array(
 				'title'    => __( 'Body background colour', 'woocommerce' ),
+				/* translators: %s: default color */
 				'desc'     => sprintf( __( 'The main body background colour. Default %s.', 'woocommerce' ), '<code>#ffffff</code>' ),
 				'id'       => 'woocommerce_email_body_background_color',
 				'type'     => 'color',
@@ -151,6 +155,7 @@ class WC_Settings_Emails extends WC_Settings_Page {
 
 			array(
 				'title'    => __( 'Body text colour', 'woocommerce' ),
+				/* translators: %s: default color */
 				'desc'     => sprintf( __( 'The main body text colour. Default %s.', 'woocommerce' ), '<code>#3c3c3c</code>' ),
 				'id'       => 'woocommerce_email_text_color',
 				'type'     => 'color',
diff --git a/includes/api/class-wc-rest-coupons-controller.php b/includes/api/class-wc-rest-coupons-controller.php
index ca0ac2ad07b..c8301385609 100644
--- a/includes/api/class-wc-rest-coupons-controller.php
+++ b/includes/api/class-wc-rest-coupons-controller.php
@@ -275,6 +275,7 @@ class WC_REST_Coupons_Controller extends WC_REST_Posts_Controller {
 	 */
 	public function create_item( $request ) {
 		if ( ! empty( $request['id'] ) ) {
+			/* translators: %s: post type */
 			return new WP_Error( "woocommerce_rest_{$this->post_type}_exists", sprintf( __( 'Cannot create existing %s.', 'woocommerce' ), $this->post_type ), array( 'status' => 400 ) );
 		}
 
diff --git a/includes/api/class-wc-rest-order-notes-controller.php b/includes/api/class-wc-rest-order-notes-controller.php
index 835d79e6f0f..33e18fa4148 100644
--- a/includes/api/class-wc-rest-order-notes-controller.php
+++ b/includes/api/class-wc-rest-order-notes-controller.php
@@ -212,6 +212,7 @@ class WC_REST_Order_Notes_Controller extends WC_REST_Controller {
 	 */
 	public function create_item( $request ) {
 		if ( ! empty( $request['id'] ) ) {
+			/* translators: %s: post type */
 			return new WP_Error( "woocommerce_rest_{$this->post_type}_exists", sprintf( __( 'Cannot create existing %s.', 'woocommerce' ), $this->post_type ), array( 'status' => 400 ) );
 		}
 
diff --git a/includes/api/class-wc-rest-order-refunds-controller.php b/includes/api/class-wc-rest-order-refunds-controller.php
index 0b3915883d4..f0bae441e6a 100644
--- a/includes/api/class-wc-rest-order-refunds-controller.php
+++ b/includes/api/class-wc-rest-order-refunds-controller.php
@@ -222,6 +222,7 @@ class WC_REST_Order_Refunds_Controller extends WC_REST_Orders_Controller {
 	 */
 	public function create_item( $request ) {
 		if ( ! empty( $request['id'] ) ) {
+			/* translators: %s: post type */
 			return new WP_Error( "woocommerce_rest_{$this->post_type}_exists", sprintf( __( 'Cannot create existing %s.', 'woocommerce' ), $this->post_type ), array( 'status' => 400 ) );
 		}
 
diff --git a/includes/api/class-wc-rest-orders-controller.php b/includes/api/class-wc-rest-orders-controller.php
index eafa1fc090e..4f01f97ae0b 100644
--- a/includes/api/class-wc-rest-orders-controller.php
+++ b/includes/api/class-wc-rest-orders-controller.php
@@ -688,6 +688,7 @@ class WC_REST_Orders_Controller extends WC_REST_Posts_Controller {
 	 */
 	public function create_item( $request ) {
 		if ( ! empty( $request['id'] ) ) {
+			/* translators: %s: post type */
 			return new WP_Error( "woocommerce_rest_{$this->post_type}_exists", sprintf( __( 'Cannot create existing %s.', 'woocommerce' ), $this->post_type ), array( 'status' => 400 ) );
 		}
 
diff --git a/includes/api/class-wc-rest-product-variations-controller.php b/includes/api/class-wc-rest-product-variations-controller.php
index 12e63d2621d..5b72e3e9ece 100644
--- a/includes/api/class-wc-rest-product-variations-controller.php
+++ b/includes/api/class-wc-rest-product-variations-controller.php
@@ -500,6 +500,7 @@ class WC_REST_Product_Variations_Controller extends WC_REST_Products_Controller
 					'readonly'    => true,
 				),
 				'weight' => array(
+					/* translators: %s: weight unit */
 					'description' => sprintf( __( 'Variation weight (%s).', 'woocommerce' ), $weight_unit ),
 					'type'        => 'string',
 					'context'     => array( 'view', 'edit' ),
@@ -510,16 +511,19 @@ class WC_REST_Product_Variations_Controller extends WC_REST_Products_Controller
 					'context'     => array( 'view', 'edit' ),
 					'properties'  => array(
 						'length' => array(
+							/* translators: %s: dimension unit */
 							'description' => sprintf( __( 'Variation length (%s).', 'woocommerce' ), $dimension_unit ),
 							'type'        => 'string',
 							'context'     => array( 'view', 'edit' ),
 						),
 						'width' => array(
+							/* translators: %s: dimension unit */
 							'description' => sprintf( __( 'Variation width (%s).', 'woocommerce' ), $dimension_unit ),
 							'type'        => 'string',
 							'context'     => array( 'view', 'edit' ),
 						),
 						'height' => array(
+							/* translators: %s: dimension unit */
 							'description' => sprintf( __( 'Variation height (%s).', 'woocommerce' ), $dimension_unit ),
 							'type'        => 'string',
 							'context'     => array( 'view', 'edit' ),
diff --git a/includes/api/class-wc-rest-products-controller.php b/includes/api/class-wc-rest-products-controller.php
index cf23e11dc5e..3b04f17aedd 100644
--- a/includes/api/class-wc-rest-products-controller.php
+++ b/includes/api/class-wc-rest-products-controller.php
@@ -1811,6 +1811,7 @@ class WC_REST_Products_Controller extends WC_REST_Posts_Controller {
 		$supports_trash = apply_filters( "woocommerce_rest_{$this->post_type}_trashable", $supports_trash, $post );
 
 		if ( ! wc_rest_check_post_permissions( $this->post_type, 'delete', $post->ID ) ) {
+			/* translators: %s: post type */
 			return new WP_Error( "woocommerce_rest_user_cannot_delete_{$this->post_type}", sprintf( __( 'Sorry, you are not allowed to delete %s.', 'woocommerce' ), $this->post_type ), array( 'status' => rest_authorization_required_code() ) );
 		}
 
@@ -1842,11 +1843,13 @@ class WC_REST_Products_Controller extends WC_REST_Posts_Controller {
 		} else {
 			// If we don't support trashing for this type, error out.
 			if ( ! $supports_trash ) {
+				/* translators: %s: post type */
 				return new WP_Error( 'woocommerce_rest_trash_not_supported', sprintf( __( 'The %s does not support trashing.', 'woocommerce' ), $this->post_type ), array( 'status' => 501 ) );
 			}
 
 			// Otherwise, only trash if we haven't already.
 			if ( 'trash' === $post->post_status ) {
+				/* translators: %s: post type */
 				return new WP_Error( 'woocommerce_rest_already_trashed', sprintf( __( 'The %s has already been deleted.', 'woocommerce' ), $this->post_type ), array( 'status' => 410 ) );
 			}
 
@@ -1856,6 +1859,7 @@ class WC_REST_Products_Controller extends WC_REST_Posts_Controller {
 		}
 
 		if ( ! $result ) {
+			/* translators: %s: post type */
 			return new WP_Error( 'woocommerce_rest_cannot_delete', sprintf( __( 'The %s cannot be deleted.', 'woocommerce' ), $this->post_type ), array( 'status' => 500 ) );
 		}
 
@@ -2136,6 +2140,7 @@ class WC_REST_Products_Controller extends WC_REST_Posts_Controller {
 					'context'     => array( 'view', 'edit' ),
 				),
 				'weight' => array(
+					/* translators: %s: weight unit */
 					'description' => sprintf( __( 'Product weight (%s).', 'woocommerce' ), $weight_unit ),
 					'type'        => 'string',
 					'context'     => array( 'view', 'edit' ),
@@ -2146,16 +2151,19 @@ class WC_REST_Products_Controller extends WC_REST_Posts_Controller {
 					'context'     => array( 'view', 'edit' ),
 					'properties'  => array(
 						'length' => array(
+							/* translators: %s: dimension unit */
 							'description' => sprintf( __( 'Product length (%s).', 'woocommerce' ), $dimension_unit ),
 							'type'        => 'string',
 							'context'     => array( 'view', 'edit' ),
 						),
 						'width' => array(
+							/* translators: %s: dimension unit */
 							'description' => sprintf( __( 'Product width (%s).', 'woocommerce' ), $dimension_unit ),
 							'type'        => 'string',
 							'context'     => array( 'view', 'edit' ),
 						),
 						'height' => array(
+							/* translators: %s: dimension unit */
 							'description' => sprintf( __( 'Product height (%s).', 'woocommerce' ), $dimension_unit ),
 							'type'        => 'string',
 							'context'     => array( 'view', 'edit' ),
@@ -2562,6 +2570,7 @@ class WC_REST_Products_Controller extends WC_REST_Posts_Controller {
 							'readonly'    => true,
 						),
 						'weight' => array(
+							/* translators: %s: weight unit */
 							'description' => sprintf( __( 'Variation weight (%s).', 'woocommerce' ), $weight_unit ),
 							'type'        => 'string',
 							'context'     => array( 'view', 'edit' ),
@@ -2572,16 +2581,19 @@ class WC_REST_Products_Controller extends WC_REST_Posts_Controller {
 							'context'     => array( 'view', 'edit' ),
 							'properties'  => array(
 								'length' => array(
+									/* translators: %s: dimension unit */
 									'description' => sprintf( __( 'Variation length (%s).', 'woocommerce' ), $dimension_unit ),
 									'type'        => 'string',
 									'context'     => array( 'view', 'edit' ),
 								),
 								'width' => array(
+									/* translators: %s: dimension unit */
 									'description' => sprintf( __( 'Variation width (%s).', 'woocommerce' ), $dimension_unit ),
 									'type'        => 'string',
 									'context'     => array( 'view', 'edit' ),
 								),
 								'height' => array(
+									/* translators: %s: dimension unit */
 									'description' => sprintf( __( 'Variation height (%s).', 'woocommerce' ), $dimension_unit ),
 									'type'        => 'string',
 									'context'     => array( 'view', 'edit' ),
diff --git a/includes/api/class-wc-rest-report-sales-controller.php b/includes/api/class-wc-rest-report-sales-controller.php
index 5b329b02ede..62ba3edfa99 100644
--- a/includes/api/class-wc-rest-report-sales-controller.php
+++ b/includes/api/class-wc-rest-report-sales-controller.php
@@ -376,6 +376,7 @@ class WC_REST_Report_Sales_Controller extends WC_REST_Controller {
 				'sanitize_callback' => 'sanitize_text_field',
 			),
 			'date_min' => array(
+				/* translators: %s: date format */
 				'description'       => sprintf( __( 'Return sales for a specific start date, the date need to be in the %s format.', 'woocommerce' ), 'YYYY-MM-AA' ),
 				'type'              => 'string',
 				'format'            => 'date',
@@ -383,6 +384,7 @@ class WC_REST_Report_Sales_Controller extends WC_REST_Controller {
 				'sanitize_callback' => 'sanitize_text_field',
 			),
 			'date_max' => array(
+				/* translators: %s: date format */
 				'description'       => sprintf( __( 'Return sales for a specific end date, the date need to be in the %s format.', 'woocommerce' ), 'YYYY-MM-AA' ),
 				'type'              => 'string',
 				'format'            => 'date',
diff --git a/includes/api/class-wc-rest-webhooks-controller.php b/includes/api/class-wc-rest-webhooks-controller.php
index 578f411346f..729a808bd18 100644
--- a/includes/api/class-wc-rest-webhooks-controller.php
+++ b/includes/api/class-wc-rest-webhooks-controller.php
@@ -128,6 +128,7 @@ class WC_REST_Webhooks_Controller extends WC_REST_Posts_Controller {
 	 */
 	public function create_item( $request ) {
 		if ( ! empty( $request['id'] ) ) {
+			/* translators: %s: post type */
 			return new WP_Error( "woocommerce_rest_{$this->post_type}_exists", sprintf( __( 'Cannot create existing %s.', 'woocommerce' ), $this->post_type ), array( 'status' => 400 ) );
 		}
 
@@ -311,6 +312,7 @@ class WC_REST_Webhooks_Controller extends WC_REST_Posts_Controller {
 		$result = wp_delete_post( $id, true );
 
 		if ( ! $result ) {
+			/* translators: %s: post type */
 			return new WP_Error( 'woocommerce_rest_cannot_delete', sprintf( __( 'The %s cannot be deleted.', 'woocommerce' ), $this->post_type ), array( 'status' => 500 ) );
 		}
 
diff --git a/includes/api/legacy/v1/class-wc-api-authentication.php b/includes/api/legacy/v1/class-wc-api-authentication.php
index 15eb42cadbd..e6b43bbb8a1 100644
--- a/includes/api/legacy/v1/class-wc-api-authentication.php
+++ b/includes/api/legacy/v1/class-wc-api-authentication.php
@@ -145,6 +145,7 @@ class WC_API_Authentication {
 		foreach ( $param_names as $param_name ) {
 
 			if ( empty( $params[ $param_name ] ) ) {
+				/* translators: %s: parameter name */
 				throw new Exception( sprintf( __( '%s parameter is missing', 'woocommerce' ), $param_name ), 404 );
 			}
 		}
diff --git a/includes/class-wc-cart.php b/includes/class-wc-cart.php
index c247369b9eb..7e912b80b5d 100644
--- a/includes/class-wc-cart.php
+++ b/includes/class-wc-cart.php
@@ -235,6 +235,7 @@ class WC_Cart {
 
 						// Flag to indicate the stored cart should be update
 						$update_cart_session = true;
+						/* translators: %s: product name */
 						wc_add_notice( sprintf( __( '%s has been removed from your cart because it can no longer be purchased. Please contact us if you need assistance.', 'woocommerce' ), $_product->get_title() ), 'error' );
 						do_action( 'woocommerce_remove_cart_item_from_session', $key, $values );
 
@@ -480,6 +481,7 @@ class WC_Cart {
 			 * Check stock based on stock-status.
 			 */
 			if ( ! $_product->is_in_stock() ) {
+				/* translators: %s: product name */
 				$error->add( 'out-of-stock', sprintf( __( 'Sorry, "%s" is not in stock. Please edit your cart and try again. We apologise for any inconvenience caused.', 'woocommerce' ), $_product->get_title() ) );
 				return $error;
 			}
@@ -494,6 +496,7 @@ class WC_Cart {
 			 * Check stock based on all items in the cart.
 			 */
 			if ( ! $_product->has_enough_stock( $check_qty ) ) {
+				/* translators: 1: product name 2: quantity in stock */
 				$error->add( 'out-of-stock', sprintf( __( 'Sorry, we do not have enough "%1$s" in stock to fulfill your order (%2$s in stock). Please edit your cart and try again. We apologise for any inconvenience caused.', 'woocommerce' ), $_product->get_title(), $_product->get_stock_quantity() ) );
 				return $error;
 			}
@@ -529,6 +532,7 @@ class WC_Cart {
 					$not_enough_stock = true;
 				}
 				if ( $not_enough_stock ) {
+					/* translators: 1: product name 2: minutes */
 					$error->add( 'out-of-stock', sprintf( __( 'Sorry, we do not have enough "%1$s" in stock to fulfill your order right now. Please try again in %2$d minutes or edit your cart and try again. We apologise for any inconvenience caused.', 'woocommerce' ), $_product->get_title(), get_option( 'woocommerce_hold_stock_minutes' ) ) );
 					return $error;
 				}
@@ -922,7 +926,8 @@ class WC_Cart {
 				$in_cart_quantity = $cart_item_key ? $this->cart_contents[ $cart_item_key ]['quantity'] : 0;
 
 				if ( $in_cart_quantity > 0 ) {
-					throw new Exception( sprintf( '<a href="%s" class="button wc-forward">%s</a> %s', wc_get_cart_url(), __( 'View cart', 'woocommerce' ), sprintf( __( 'You cannot add another &quot;%s&quot; to your cart.', 'woocommerce' ), $product_data->get_title() ) ) );
+					/* translators: %s: product name */
+					throw new Exception( sprintf( '<a href="%s" class="button wc-forward">%s</a> %s', wc_get_cart_url(), __( 'View cart', 'woocommerce' ), sprintf( __( 'You cannot add another "%s" to your cart.', 'woocommerce' ), $product_data->get_title() ) ) );
 				}
 			}
 
@@ -937,6 +942,7 @@ class WC_Cart {
 			}
 
 			if ( ! $product_data->has_enough_stock( $quantity ) ) {
+				/* translators: 1: product name 2: quantity in stock */
 				throw new Exception( sprintf( __( 'You cannot add that amount of &quot;%1$s&quot; to the cart because there is not enough stock (%2$s remaining).', 'woocommerce' ), $product_data->get_title(), $product_data->get_stock_quantity() ) );
 			}
 
diff --git a/includes/class-wc-coupon.php b/includes/class-wc-coupon.php
index 719faafe63d..d9593857ad4 100644
--- a/includes/class-wc-coupon.php
+++ b/includes/class-wc-coupon.php
@@ -1290,18 +1290,22 @@ class WC_Coupon extends WC_Legacy_Coupon {
 				$err = __( 'Coupon is not valid.', 'woocommerce' );
 			break;
 			case self::E_WC_COUPON_NOT_EXIST:
+				/* translators: %s: coupon code */
 				$err = sprintf( __( 'Coupon "%s" does not exist!', 'woocommerce' ), $this->get_code() );
 			break;
 			case self::E_WC_COUPON_INVALID_REMOVED:
+				/* translators: %s: coupon code */
 				$err = sprintf( __( 'Sorry, it seems the coupon "%s" is invalid - it has now been removed from your order.', 'woocommerce' ), $this->get_code() );
 			break;
 			case self::E_WC_COUPON_NOT_YOURS_REMOVED:
+				/* translators: %s: coupon code */
 				$err = sprintf( __( 'Sorry, it seems the coupon "%s" is not yours - it has now been removed from your order.', 'woocommerce' ), $this->get_code() );
 			break;
 			case self::E_WC_COUPON_ALREADY_APPLIED:
 				$err = __( 'Coupon code already applied!', 'woocommerce' );
 			break;
 			case self::E_WC_COUPON_ALREADY_APPLIED_INDIV_USE_ONLY:
+				/* translators: %s: coupon code */
 				$err = sprintf( __( 'Sorry, coupon "%s" has already been applied and cannot be used in conjunction with other coupons.', 'woocommerce' ), $this->get_code() );
 			break;
 			case self::E_WC_COUPON_USAGE_LIMIT_REACHED:
@@ -1311,9 +1315,11 @@ class WC_Coupon extends WC_Legacy_Coupon {
 				$err = __( 'This coupon has expired.', 'woocommerce' );
 			break;
 			case self::E_WC_COUPON_MIN_SPEND_LIMIT_NOT_MET:
+				/* translators: %s: coupon minimum amount */
 				$err = sprintf( __( 'The minimum spend for this coupon is %s.', 'woocommerce' ), wc_price( $this->get_minimum_amount() ) );
 			break;
 			case self::E_WC_COUPON_MAX_SPEND_LIMIT_MET:
+				/* translators: %s: coupon maximum amount */
 				$err = sprintf( __( 'The maximum spend for this coupon is %s.', 'woocommerce' ), wc_price( $this->get_maximum_amount() ) );
 			break;
 			case self::E_WC_COUPON_NOT_APPLICABLE:
@@ -1330,6 +1336,7 @@ class WC_Coupon extends WC_Legacy_Coupon {
 					}
 				}
 
+				/* translators: %s: products list */
 				$err = sprintf( __( 'Sorry, this coupon is not applicable to the products: %s.', 'woocommerce' ), implode( ', ', $products ) );
 				break;
 			case self::E_WC_COUPON_EXCLUDED_CATEGORIES:
@@ -1349,6 +1356,7 @@ class WC_Coupon extends WC_Legacy_Coupon {
 					}
 				}
 
+				/* translators: %s: categories list */
 				$err = sprintf( __( 'Sorry, this coupon is not applicable to the categories: %s.', 'woocommerce' ), implode( ', ', array_unique( $categories ) ) );
 				break;
 			case self::E_WC_COUPON_NOT_VALID_SALE_ITEMS:
diff --git a/includes/class-wc-embed.php b/includes/class-wc-embed.php
index 6f5c2e158f8..88f079f67c9 100644
--- a/includes/class-wc-embed.php
+++ b/includes/class-wc-embed.php
@@ -124,7 +124,13 @@ class WC_Embed {
 		if ( self::is_embedded_product() && ( $_product = wc_get_product( get_the_ID() ) ) && $_product->get_average_rating() > 0 ) {
 			?>
 			<div class="wc-embed-rating">
-				<?php echo esc_html( sprintf( __( 'Rated %s out of 5', 'woocommerce' ), $_product->get_average_rating() ) ); ?>
+				<?php
+					/* translators: %s: average rating */
+					printf(
+						esc_html_( 'Rated %s out of 5', 'woocommerce' ),
+						$_product->get_average_rating()
+					);
+				?>
 			</div>
 			<?php
 		}
diff --git a/includes/class-wc-order.php b/includes/class-wc-order.php
index cd35b76390d..0f3a7f1c87e 100644
--- a/includes/class-wc-order.php
+++ b/includes/class-wc-order.php
@@ -474,11 +474,13 @@ class WC_Order extends WC_Abstract_Order {
 	protected function status_transition() {
 		if ( $this->status_transition ) {
 			if ( ! empty( $this->status_transition['from'] ) ) {
+				/* translators: 1: old order status 2: new order status */
 				$transition_note = sprintf( __( 'Order status changed from %1$s to %2$s.', 'woocommerce' ), wc_get_order_status_name( $this->status_transition['from'] ), wc_get_order_status_name( $this->status_transition['to'] ) );
 
 				do_action( 'woocommerce_order_status_' . $this->status_transition['from'] . '_to_' . $this->status_transition['to'], $this->get_id() );
 				do_action( 'woocommerce_order_status_changed', $this->get_id(), $this->status_transition['from'], $this->status_transition['to'] );
 			} else {
+				/* translators: %s: new order status */
 				$transition_note = sprintf( __( 'Order status set to %s.', 'woocommerce' ), wc_get_order_status_name( $this->status_transition['to'] ) );
 			}
 
@@ -822,6 +824,7 @@ class WC_Order extends WC_Abstract_Order {
 	 * @return string
 	 */
 	public function get_formatted_billing_full_name() {
+		/* translators: 1: first name 2: last name */
 		return sprintf( _x( '%1$s %2$s', 'full name', 'woocommerce' ), $this->get_billing_first_name(), $this->get_billing_last_name() );
 	}
 
@@ -830,6 +833,7 @@ class WC_Order extends WC_Abstract_Order {
 	 * @return string
 	 */
 	public function get_formatted_shipping_full_name() {
+		/* translators: 1: first name 2: last name */
 		return sprintf( _x( '%1$s %2$s', 'full name', 'woocommerce' ), $this->get_shipping_first_name(), $this->get_shipping_last_name() );
 	}
 
diff --git a/includes/class-wc-query.php b/includes/class-wc-query.php
index c0892425464..3962938a889 100644
--- a/includes/class-wc-query.php
+++ b/includes/class-wc-query.php
@@ -95,6 +95,7 @@ class WC_Query {
 			break;
 			case 'orders' :
 				if ( ! empty( $wp->query_vars['orders'] ) ) {
+					/* translators: %s: page */
 					$title = sprintf( __( 'Orders (page %d)', 'woocommerce' ), intval( $wp->query_vars['orders'] ) );
 				} else {
 					$title = __( 'Orders', 'woocommerce' );
@@ -102,6 +103,7 @@ class WC_Query {
 			break;
 			case 'view-order' :
 				$order = wc_get_order( $wp->query_vars['view-order'] );
+				/* translators: %s: order number */
 				$title = ( $order ) ? sprintf( __( 'Order #%s', 'woocommerce' ), $order->get_order_number() ) : '';
 			break;
 			case 'downloads' :
diff --git a/includes/cli/class-wc-cli-customer.php b/includes/cli/class-wc-cli-customer.php
index 3c9b3f724aa..4d261210704 100644
--- a/includes/cli/class-wc-cli-customer.php
+++ b/includes/cli/class-wc-cli-customer.php
@@ -563,6 +563,7 @@ class WC_CLI_Customer extends WC_CLI_Command {
 		}
 
 		if ( ! $user ) {
+			/* translators: %s: id email or login */
 			throw new WC_CLI_Exception( 'woocommerce_cli_invalid_customer', sprintf( __( 'Invalid customer "%s"', 'woocommerce' ), $id_email_or_login ) );
 		}
 
diff --git a/includes/cli/class-wc-cli-order.php b/includes/cli/class-wc-cli-order.php
index 8e6bb3b9bda..69f463690e2 100644
--- a/includes/cli/class-wc-cli-order.php
+++ b/includes/cli/class-wc-cli-order.php
@@ -119,6 +119,7 @@ class WC_CLI_Order extends WC_CLI_Command {
 			$order = $this->create_base_order( $default_order_args, $data );
 
 			if ( is_wp_error( $order ) ) {
+				/* translators: %s: error messages */
 				throw new WC_CLI_Exception( 'woocommerce_cli_cannot_create_order', sprintf( __( 'Cannot create order: %s', 'woocommerce' ), implode( ', ', $order->get_error_messages() ) ) );
 			}
 
diff --git a/includes/cli/class-wc-cli-product-category.php b/includes/cli/class-wc-cli-product-category.php
index 2159a0f29ae..af1095f40c2 100644
--- a/includes/cli/class-wc-cli-product-category.php
+++ b/includes/cli/class-wc-cli-product-category.php
@@ -121,6 +121,7 @@ class WC_CLI_Product_Category extends WC_CLI_Command {
 		$term    = get_term( $term_id, 'product_cat' );
 
 		if ( is_wp_error( $term ) || is_null( $term ) ) {
+			/* translators: %s: product category ID */
 			throw new WC_CLI_Exception( 'woocommerce_cli_invalid_product_category_id', sprintf( __( 'Invalid product category ID "%s"', 'woocommerce' ), $term_id ) );
 		}
 
diff --git a/includes/emails/class-wc-email-customer-completed-order.php b/includes/emails/class-wc-email-customer-completed-order.php
index e3eb980283b..81c8f59cdf6 100644
--- a/includes/emails/class-wc-email-customer-completed-order.php
+++ b/includes/emails/class-wc-email-customer-completed-order.php
@@ -144,6 +144,7 @@ class WC_Email_Customer_Completed_Order extends WC_Email {
 			'subject' => array(
 				'title'         => __( 'Subject', 'woocommerce' ),
 				'type'          => 'text',
+				/* translators: %s: default subject */
 				'description'   => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->subject . '</code>' ),
 				'placeholder'   => '',
 				'default'       => '',
@@ -152,6 +153,7 @@ class WC_Email_Customer_Completed_Order extends WC_Email {
 			'heading' => array(
 				'title'         => __( 'Email heading', 'woocommerce' ),
 				'type'          => 'text',
+				/* translators: %s: default heading */
 				'description'   => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->heading . '</code>' ),
 				'placeholder'   => '',
 				'default'       => '',
@@ -160,6 +162,7 @@ class WC_Email_Customer_Completed_Order extends WC_Email {
 			'subject_downloadable' => array(
 				'title'         => __( 'Subject (downloadable)', 'woocommerce' ),
 				'type'          => 'text',
+				/* translators: %s: default subject */
 				'description'   => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->subject_downloadable . '</code>' ),
 				'placeholder'   => '',
 				'default'       => '',
@@ -168,6 +171,7 @@ class WC_Email_Customer_Completed_Order extends WC_Email {
 			'heading_downloadable' => array(
 				'title'         => __( 'Email heading (downloadable)', 'woocommerce' ),
 				'type'          => 'text',
+				/* translators: %s: default heading */
 				'description'   => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->heading_downloadable . '</code>' ),
 				'placeholder'   => '',
 				'default'       => '',
diff --git a/includes/emails/class-wc-email-customer-invoice.php b/includes/emails/class-wc-email-customer-invoice.php
index e4eecd578a4..af067513145 100644
--- a/includes/emails/class-wc-email-customer-invoice.php
+++ b/includes/emails/class-wc-email-customer-invoice.php
@@ -157,6 +157,7 @@ class WC_Email_Customer_Invoice extends WC_Email {
 			'subject' => array(
 				'title'         => __( 'Email subject', 'woocommerce' ),
 				'type'          => 'text',
+				/* translators: %s: default subject */
 				'description'   => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->subject . '</code>' ),
 				'placeholder'   => '',
 				'default'       => '',
@@ -165,6 +166,7 @@ class WC_Email_Customer_Invoice extends WC_Email {
 			'heading' => array(
 				'title'         => __( 'Email heading', 'woocommerce' ),
 				'type'          => 'text',
+				/* translators: %s: default heading */
 				'description'   => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->heading . '</code>' ),
 				'placeholder'   => '',
 				'default'       => '',
@@ -173,6 +175,7 @@ class WC_Email_Customer_Invoice extends WC_Email {
 			'subject_paid' => array(
 				'title'         => __( 'Email subject (paid)', 'woocommerce' ),
 				'type'          => 'text',
+				/* translators: %s: default subject */
 				'description'   => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->subject_paid . '</code>' ),
 				'placeholder'   => '',
 				'default'       => '',
@@ -181,6 +184,7 @@ class WC_Email_Customer_Invoice extends WC_Email {
 			'heading_paid' => array(
 				'title'         => __( 'Email heading (paid)', 'woocommerce' ),
 				'type'          => 'text',
+				/* translators: %s: default heading */
 				'description'   => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->heading_paid . '</code>' ),
 				'placeholder'   => '',
 				'default'       => '',
diff --git a/includes/emails/class-wc-email-customer-refunded-order.php b/includes/emails/class-wc-email-customer-refunded-order.php
index 667cbed8050..c23b73d34f9 100644
--- a/includes/emails/class-wc-email-customer-refunded-order.php
+++ b/includes/emails/class-wc-email-customer-refunded-order.php
@@ -202,6 +202,7 @@ class WC_Email_Customer_Refunded_Order extends WC_Email {
 			'subject_full' => array(
 				'title'       => __( 'Full refund subject', 'woocommerce' ),
 				'type'        => 'text',
+				/* translators: %s: default subject */
 				'description' => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->subject_full . '</code>' ),
 				'placeholder' => '',
 				'default'     => $this->subject_full,
@@ -210,6 +211,7 @@ class WC_Email_Customer_Refunded_Order extends WC_Email {
 			'subject_partial' => array(
 				'title'       => __( 'Partial refund subject', 'woocommerce' ),
 				'type'        => 'text',
+				/* translators: %s: default subject */
 				'description' => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->subject_partial . '</code>' ),
 				'placeholder' => '',
 				'default'     => $this->subject_partial,
@@ -218,6 +220,7 @@ class WC_Email_Customer_Refunded_Order extends WC_Email {
 			'heading_full' => array(
 				'title'       => __( 'Full refund email heading', 'woocommerce' ),
 				'type'        => 'text',
+				/* translators: %s: default heading */
 				'description' => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->heading_full . '</code>' ),
 				'placeholder' => '',
 				'default'     => $this->heading_full,
@@ -226,6 +229,7 @@ class WC_Email_Customer_Refunded_Order extends WC_Email {
 			'heading_partial' => array(
 				'title'       => __( 'Partial refund email heading', 'woocommerce' ),
 				'type'        => 'text',
+				/* translators: %s: default heading */
 				'description' => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->heading_partial . '</code>' ),
 				'placeholder' => '',
 				'default'     => $this->heading_partial,
diff --git a/includes/emails/class-wc-email.php b/includes/emails/class-wc-email.php
index 9e908bc62a7..e2139aca738 100644
--- a/includes/emails/class-wc-email.php
+++ b/includes/emails/class-wc-email.php
@@ -491,6 +491,7 @@ class WC_Email extends WC_Settings_API {
 			'subject'         => array(
 				'title'       => __( 'Email subject', 'woocommerce' ),
 				'type'        => 'text',
+				/* translators: %s: default subject */
 				'description' => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->subject . '</code>' ),
 				'placeholder' => '',
 				'default'     => '',
@@ -499,6 +500,7 @@ class WC_Email extends WC_Settings_API {
 			'heading'         => array(
 				'title'       => __( 'Email heading', 'woocommerce' ),
 				'type'        => 'text',
+				/* translators: %s: default heading */
 				'description' => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->heading . '</code>' ),
 				'placeholder' => '',
 				'default'     => '',