diff --git a/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-coupons-data-store.php b/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-coupons-data-store.php
index f41a4a3547c..e73eabbf121 100644
--- a/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-coupons-data-store.php
+++ b/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-coupons-data-store.php
@@ -345,6 +345,12 @@ class WC_Admin_Reports_Coupons_Data_Store extends WC_Admin_Reports_Data_Store im
 				)
 			);
 
+			/**
+			 * Fires when coupon's reports are updated.
+			 *
+			 * @param int $coupon_id Coupon ID.
+			 * @param int $order_id  Order ID.
+			 */
 			do_action( 'woocommerce_update_reports_coupon', $coupon_id, $order_id );
 		}
 	}
diff --git a/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-customers-data-store.php b/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-customers-data-store.php
index 25a1ae26a44..d3995ec37c9 100644
--- a/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-customers-data-store.php
+++ b/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-customers-data-store.php
@@ -436,6 +436,11 @@ class WC_Admin_Reports_Customers_Data_Store extends WC_Admin_Reports_Data_Store
 		);
 		$customer_id = $wpdb->insert_id;
 
+		/**
+		 * Fires when customser's reports are created.
+		 *
+		 * @param int $customer_id Customer ID.
+		 */
 		do_action( 'woocommerce_new_reports_customer', $customer_id );
 
 		return $result ? $customer_id : false;
@@ -562,6 +567,11 @@ class WC_Admin_Reports_Customers_Data_Store extends WC_Admin_Reports_Data_Store
 
 		$results = $wpdb->replace( $wpdb->prefix . self::TABLE_NAME, $data, $format );
 
+		/**
+		 * Fires when customser's reports are updated.
+		 *
+		 * @param int $customer_id Customer ID.
+		 */
 		do_action( 'woocommerce_update_reports_customer', $customer_id );
 		return $results;
 	}
diff --git a/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-orders-stats-data-store.php b/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-orders-stats-data-store.php
index 5a4bac5113e..e7754a0fc33 100644
--- a/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-orders-stats-data-store.php
+++ b/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-orders-stats-data-store.php
@@ -447,6 +447,11 @@ class WC_Admin_Reports_Orders_Stats_Data_Store extends WC_Admin_Reports_Data_Sto
 		// Update or add the information to the DB.
 		$results = $wpdb->replace( $table_name, $data, $format );
 
+		/**
+		 * Fires when order's stats reports are updated.
+		 *
+		 * @param int $order_id Order ID.
+		 */
 		do_action( 'woocommerce_update_reports_order_stats', $order->get_id() );
 		return $results;
 	}
diff --git a/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-products-data-store.php b/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-products-data-store.php
index bece834f866..b85b86aa76c 100644
--- a/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-products-data-store.php
+++ b/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-products-data-store.php
@@ -343,6 +343,13 @@ class WC_Admin_Reports_Products_Data_Store extends WC_Admin_Reports_Data_Store i
 					array( 'order_item_id' => $order_item_id ),
 					array( '%d' )
 				);
+
+				/**
+				 * Fires when product's reports are deleted.
+				 *
+				 * @param int $order_item_id Order Item ID.
+				 * @param int $order_id      Order ID.
+				 */
 				do_action( 'woocommerce_delete_reports_product', $order_item_id, $order->get_id() );
 			} else {
 				$wpdb->replace(
@@ -369,6 +376,12 @@ class WC_Admin_Reports_Products_Data_Store extends WC_Admin_Reports_Data_Store i
 					)
 				);
 
+				/**
+				 * Fires when product's reports are updated.
+				 *
+				 * @param int $order_item_id Order Item ID.
+				 * @param int $order_id      Order ID.
+				 */
 				do_action( 'woocommerce_update_reports_product', $order_item_id, $order->get_id() );
 			}
 		}
diff --git a/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-taxes-data-store.php b/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-taxes-data-store.php
index ac9278e8405..3764508a86b 100644
--- a/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-taxes-data-store.php
+++ b/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-taxes-data-store.php
@@ -285,6 +285,12 @@ class WC_Admin_Reports_Taxes_Data_Store extends WC_Admin_Reports_Data_Store impl
 				)
 			);
 
+			/**
+			 * Fires when tax's reports are updated.
+			 *
+			 * @param int $tax_rate_id Tax Rate ID.
+			 * @param int $order_id    Order ID.
+			 */
 			do_action( 'woocommerce_update_reports_tax', $tax_item->get_rate_id(), $order->get_id() );
 		}
 	}