diff --git a/includes/abstracts/abstract-wc-data.php b/includes/abstracts/abstract-wc-data.php
index 30c88e98364..b47f511e9b1 100644
--- a/includes/abstracts/abstract-wc-data.php
+++ b/includes/abstracts/abstract-wc-data.php
@@ -264,6 +264,16 @@ abstract class WC_Data {
 		}
 	}
 
+	/**
+	 * Callback to remove unwanted meta data.
+	 *
+	 * @param object $meta
+	 * @return bool
+	 */
+	protected function exclude_internal_meta_keys( $meta ) {
+		return ! in_array( $meta->meta_key, $this->get_internal_meta_keys() );
+	}
+
 	/**
 	 * Read Meta Data from the database. Ignore any internal properties.
 	 * @since 2.6.0
@@ -296,10 +306,8 @@ abstract class WC_Data {
 			", $this->get_id() ) );
 
 			if ( $raw_meta_data ) {
+				$raw_meta_data = array_filter( $raw_meta_data, array( $this, 'exclude_internal_meta_keys' ) );
 				foreach ( $raw_meta_data as $meta ) {
-					if ( in_array( $meta->meta_key, $this->get_internal_meta_keys() ) ) {
-						continue;
-					}
 					$this->_meta_data[] = (object) array(
 						'id'    => (int) $meta->{ $db_info['meta_id_field'] },
 						'key'   => $meta->meta_key,
@@ -390,6 +398,9 @@ abstract class WC_Data {
 
 		foreach ( $props as $prop => $value ) {
 			try {
+				if ( 'meta_data' === $prop ) {
+					continue;
+				}
 				$setter = "set_$prop";
 				if ( ! is_null( $value ) && is_callable( array( $this, $setter ) ) ) {
 					$this->{$setter}( $value );
diff --git a/includes/api/class-wc-rest-coupons-controller.php b/includes/api/class-wc-rest-coupons-controller.php
index f81a5584a94..5f9d6322aeb 100644
--- a/includes/api/class-wc-rest-coupons-controller.php
+++ b/includes/api/class-wc-rest-coupons-controller.php
@@ -495,6 +495,29 @@ class WC_REST_Coupons_Controller extends WC_REST_Posts_Controller {
 					'context'     => array( 'view', 'edit' ),
 					'readonly'    => true,
 				),
+				'meta_data' => array(
+					'description' => __( 'Order meta data.', 'woocommerce' ),
+					'type'        => 'array',
+					'context'     => array( 'view', 'edit' ),
+					'properties'  => array(
+						'id' => array(
+							'description' => __( 'Meta ID.', 'woocommerce' ),
+							'type'        => 'int',
+							'context'     => array( 'view', 'edit' ),
+							'readonly'    => true,
+						),
+						'key' => array(
+							'description' => __( 'Meta key.', 'woocommerce' ),
+							'type'        => 'string',
+							'context'     => array( 'view', 'edit' ),
+						),
+						'value' => array(
+							'description' => __( 'Meta value.', 'woocommerce' ),
+							'type'        => 'string',
+							'context'     => array( 'view', 'edit' ),
+						),
+					),
+				),
 			),
 		);
 		return $this->add_additional_fields_schema( $schema );
diff --git a/includes/api/class-wc-rest-customers-controller.php b/includes/api/class-wc-rest-customers-controller.php
index 3b01624066b..20bfa41ce75 100644
--- a/includes/api/class-wc-rest-customers-controller.php
+++ b/includes/api/class-wc-rest-customers-controller.php
@@ -507,7 +507,7 @@ class WC_REST_Customers_Controller extends WC_REST_Controller {
 		if ( $last_order_data = $customer->get_last_order() ) {
 			$data['last_order'] = array(
 				'id'   => $last_order_data->get_id(),
-				'date' => wc_rest_prepare_date_response( $last_order_data->get_date_created() ),
+				'date' => $last_order_data->get_date_created() ? wc_rest_prepare_date_response( $last_order_data->get_date_created() ) : null,
 			);
 		}
 
@@ -536,6 +536,15 @@ class WC_REST_Customers_Controller extends WC_REST_Controller {
 	protected function update_customer_meta_fields( $customer, $request ) {
 		$schema = $this->get_item_schema();
 
+		// Meta data
+		if ( isset( $request['meta_data'] ) ) {
+			if ( is_array( $request['meta_data'] ) ) {
+				foreach ( $request['meta_data'] as $meta ) {
+					$coupon->update_meta_data( $meta['key'], $meta['value'], $meta['id'] );
+				}
+			}
+		}
+
 		// Customer first name.
 		if ( isset( $request['first_name'] ) ) {
 			$customer->set_first_name( wc_clean( $request['first_name'] ) );
@@ -801,6 +810,35 @@ class WC_REST_Customers_Controller extends WC_REST_Controller {
 						),
 					),
 				),
+				'is_paying_customer' => array(
+					'description' => __( 'Is the customer a paying customer?', 'woocommerce' ),
+					'type'        => 'bool',
+					'context'     => array( 'view', 'edit' ),
+					'readonly'    => true,
+				),
+				'meta_data' => array(
+					'description' => __( 'Order meta data.', 'woocommerce' ),
+					'type'        => 'array',
+					'context'     => array( 'view', 'edit' ),
+					'properties'  => array(
+						'id' => array(
+							'description' => __( 'Meta ID.', 'woocommerce' ),
+							'type'        => 'int',
+							'context'     => array( 'view', 'edit' ),
+							'readonly'    => true,
+						),
+						'key' => array(
+							'description' => __( 'Meta key.', 'woocommerce' ),
+							'type'        => 'string',
+							'context'     => array( 'view', 'edit' ),
+						),
+						'value' => array(
+							'description' => __( 'Meta value.', 'woocommerce' ),
+							'type'        => 'string',
+							'context'     => array( 'view', 'edit' ),
+						),
+					),
+				),
 			),
 		);
 
diff --git a/includes/class-wc-customer.php b/includes/class-wc-customer.php
index c12d048b982..95162e5cd71 100644
--- a/includes/class-wc-customer.php
+++ b/includes/class-wc-customer.php
@@ -79,9 +79,10 @@ class WC_Customer extends WC_Legacy_Customer {
 		'shipping_address_2', 'shipping_state', 'shipping_country', 'paying_customer',
 		'last_update', 'first_name', 'last_name', 'show_admin_bar_front',
 		'use_ssl', 'admin_color', 'rich_editing', 'comment_shortcuts', 'dismissed_wp_pointers', 'show_welcome_panel',
-		'_woocommerce_persistent_cart', 'session_tokens',
+		'_woocommerce_persistent_cart', 'session_tokens', 'nickname', 'description',
 		'billing_first_name', 'billing_last_name', 'billing_company', 'billing_phone', 'billing_email',
-		'shipping_first_name', 'shipping_last_name', 'shipping_company',
+		'shipping_first_name', 'shipping_last_name', 'shipping_company', 'default_password_nag',
+		'primary_blog', 'source_domain',
 	);
 
 	/**
@@ -244,7 +245,7 @@ class WC_Customer extends WC_Legacy_Customer {
 			$spent = 0;
 		}
 
-		return wc_format_decimal( $spent );
+		return wc_format_decimal( $spent, 2 );
 	}
 
 	/**
@@ -1072,7 +1073,7 @@ class WC_Customer extends WC_Legacy_Customer {
 	 * @return mixed
 	 */
 	private function flatten_post_meta( $value ) {
-		return current( $value );
+		return is_array( $value ) ? current( $value ) : $value;
 	}
 
 	/**
@@ -1096,7 +1097,7 @@ class WC_Customer extends WC_Legacy_Customer {
 		}
 
 		$this->set_id( $user_object->ID );
-		$this->set_props( array_map( array( $this, 'flatten_post_meta'), get_post_meta( $id ) ) );
+		$this->set_props( array_map( array( $this, 'flatten_post_meta'), get_user_meta( $id ) ) );
 		$this->set_props( array(
 			'is_paying_customer' => get_user_meta( $id, 'paying_customer', true ),
 			'email'              => $user_object->user_email,
@@ -1113,12 +1114,10 @@ class WC_Customer extends WC_Legacy_Customer {
 	 * @since 2.7.0
 	 */
 	public function update() {
-		$customer_ID = $this->get_id();
-
-		wp_update_user( array( 'ID' => $customer_ID, 'user_email' => $this->get_email() ) );
+		wp_update_user( array( 'ID' => $this->get_id(), 'user_email' => $this->get_email() ) );
 		// Only update password if a new one was set with set_password
 		if ( ! empty( $this->_password ) ) {
-			wp_update_user( array( 'ID' => $customer_ID, 'user_pass' => $this->_password ) );
+			wp_update_user( array( 'ID' => $this->get_id(), 'user_pass' => $this->_password ) );
 			$this->_password = '';
 		}
 
@@ -1211,4 +1210,18 @@ class WC_Customer extends WC_Legacy_Customer {
 		}
 	}
 
+	/**
+	 * Callback to remove unwanted meta data.
+	 *
+	 * @param object $meta
+	 * @return bool
+	 */
+	protected function exclude_internal_meta_keys( $meta ) {
+		global $wpdb;
+		return ! in_array( $meta->meta_key, $this->get_internal_meta_keys() )
+			&& 0 !== strpos( $meta->meta_key, 'closedpostboxes_' )
+			&& 0 !== strpos( $meta->meta_key, 'metaboxhidden_' )
+			&& 0 !== strpos( $meta->meta_key, 'manageedit-' )
+			&& ! strstr( $meta->meta_key, $wpdb->prefix );
+	}
 }
diff --git a/includes/legacy/class-wc-legacy-customer.php b/includes/legacy/class-wc-legacy-customer.php
index c413daca666..b10bec9b16b 100644
--- a/includes/legacy/class-wc-legacy-customer.php
+++ b/includes/legacy/class-wc-legacy-customer.php
@@ -20,7 +20,7 @@ abstract class WC_Legacy_Customer extends WC_Data {
 	 */
 	public function __isset( $key ) {
 		$legacy_keys = array(
-			'country', 'state', 'postcode' ,'city', 'address_1', 'address', 'address_2', 'shipping_country', 'shipping_state',
+			'id', 'country', 'state', 'postcode' ,'city', 'address_1', 'address', 'address_2', 'shipping_country', 'shipping_state',
 			'shipping_postcode', 'shipping_city', 'shipping_address_1', 'shipping_address', 'shipping_address_2', 'is_vat_exempt', 'calculated_shipping',
 		);
 		$key = $this->filter_legacy_key( $key );
@@ -39,7 +39,7 @@ abstract class WC_Legacy_Customer extends WC_Data {
 		if ( in_array( $key, array( 'country', 'state', 'postcode' ,'city', 'address_1', 'address', 'address_2' ) ) ) {
 			$key = 'billing_' . $key;
 		}
-		return is_callable( $this, "get_{$key}" ) ? $this->{"get_{$key}"}() : '';
+		return is_callable( array( $this, "get_{$key}" ) ) ? $this->{"get_{$key}"}() : '';
 	}
 
 	/**
@@ -52,7 +52,7 @@ abstract class WC_Legacy_Customer extends WC_Data {
 		_doing_it_wrong( $key, 'Customer properties should not be set directly.', '2.7' );
 		$key = $this->filter_legacy_key( $key );
 
-		if ( is_callable( $this, "set_{$key}" ) ) {
+		if ( is_callable( array( $this, "set_{$key}" ) ) ) {
 			$this->{"set_{$key}"}( $value );
 		}
 	}
diff --git a/tests/framework/helpers/class-wc-helper-customer.php b/tests/framework/helpers/class-wc-helper-customer.php
index b585bd4582b..769841617ee 100644
--- a/tests/framework/helpers/class-wc-helper-customer.php
+++ b/tests/framework/helpers/class-wc-helper-customer.php
@@ -60,7 +60,7 @@ class WC_Helper_Customer {
 		$customer->set_username( $username );
 		$customer->set_password( $password );
 		$customer->set_email( $email );
-		$customer->create();
+		$customer->save();
 		return $customer;
 	}
 
diff --git a/tests/unit-tests/api/coupons.php b/tests/unit-tests/api/coupons.php
index 0b190efdfb4..078087e5a06 100644
--- a/tests/unit-tests/api/coupons.php
+++ b/tests/unit-tests/api/coupons.php
@@ -406,7 +406,7 @@ class WC_Tests_API_Coupons extends WC_REST_Unit_Test_Case {
 		$data = $response->get_data();
 		$properties = $data['schema']['properties'];
 
-		$this->assertEquals( 23, count( $properties ) );
+		$this->assertEquals( 24, count( $properties ) );
 		$this->assertArrayHasKey( 'id', $properties );
 		$this->assertArrayHasKey( 'code', $properties );
 		$this->assertArrayHasKey( 'date_created', $properties );
diff --git a/tests/unit-tests/api/customers.php b/tests/unit-tests/api/customers.php
index a7db36a3d9b..cc8eaf826dc 100644
--- a/tests/unit-tests/api/customers.php
+++ b/tests/unit-tests/api/customers.php
@@ -18,8 +18,8 @@ class Customers extends WC_REST_Unit_Test_Case {
 
 	/**
 	 * Test route registration.
-     *
-     * @since 2.7.0
+	 *
+	 * @since 2.7.0
 	 */
 	public function test_register_routes() {
 		$routes = $this->server->get_routes();
@@ -29,88 +29,90 @@ class Customers extends WC_REST_Unit_Test_Case {
 		$this->assertArrayHasKey( '/wc/v1/customers/batch', $routes );
 	}
 
-    /**
-     * Test getting customers.
-     *
-     * @since 2.7.0
-     */
-    public function test_get_customers() {
-	    wp_set_current_user( 1 );
+	/**
+	 * Test getting customers.
+	 *
+	 * @since 2.7.0
+	 */
+	public function test_get_customers() {
+		wp_set_current_user( 1 );
 
-	    $customer_1 = WC_Helper_Customer::create_customer();
-	    WC_Helper_Customer::create_customer( 'test2', 'test2', 'test2@woo.local' );
+		$customer_1 = WC_Helper_Customer::create_customer();
+		WC_Helper_Customer::create_customer( 'test2', 'test2', 'test2@woo.local' );
 
-	    $request = new WP_REST_Request( 'GET', '/wc/v1/customers' );
-	    $request->set_query_params( array(
+		$request = new WP_REST_Request( 'GET', '/wc/v1/customers' );
+		$request->set_query_params( array(
 			'orderby' => 'id',
 		) );
-	    $response  = $this->server->dispatch( $request );
-	    $customers = $response->get_data();
+		$response  = $this->server->dispatch( $request );
+		$customers = $response->get_data();
 
-	    $this->assertEquals( 200, $response->get_status() );
-	    $this->assertEquals( 2, count( $customers ) );
+		$this->assertEquals( 200, $response->get_status() );
+		$this->assertEquals( 2, count( $customers ) );
 
-	    $this->assertContains( array(
-	        'id'            => $customer_1->get_id(),
-	        'date_created'  => wc_rest_prepare_date_response( date( 'Y-m-d H:i:s', $customer_1->get_date_created() ) ),
-	        'date_modified' => wc_rest_prepare_date_response( date( 'Y-m-d H:i:s', $customer_1->get_date_modified() ) ),
-	        'email'         => 'test@woo.local',
-	        'first_name'    => 'Justin',
-	        'last_name'     => '',
-	        'username'      => 'testcustomer',
-	        'last_order'    => null,
-	        'orders_count'  => 0,
-	        'total_spent'   => '0.00',
-	        'avatar_url'    => $customer_1->get_avatar_url(),
-	        'billing' => array(
-	            'first_name' => '',
-	            'last_name'  => '',
-	            'company'    => '',
-	            'address_1'  => '123 South Street',
-	            'address_2'  => 'Apt 1',
-	            'city'       => 'Philadelphia',
-	            'state'      => 'PA',
-	            'postcode'   => '19123',
-	            'country'    => 'US',
-	            'email'      => '',
-	            'phone'      => '',
-	        ),
-	        'shipping' => array(
-	            'first_name' => '',
-	            'last_name'  => '',
-	            'company'    => '',
-	            'address_1'  => '123 South Street',
-	            'address_2'  => 'Apt 1',
-	            'city'       => 'Philadelphia',
-	            'state'      => 'PA',
-	            'postcode'   => '19123',
-	            'country'    => 'US',
-	        ),
-	        '_links' => array(
-	            'self'       => array(
-	                array(
-	                    'href' => rest_url( '/wc/v1/customers/' . $customer_1->get_id() . '' ),
-	                ),
-	            ),
-	            'collection' => array(
-	                array(
-	                    'href' => rest_url( '/wc/v1/customers' ),
-	                ),
-	            ),
-	        ),
-	    ), $customers );
-    }
+		$this->assertContains( array(
+			'id'            => $customer_1->get_id(),
+			'date_created'  => wc_rest_prepare_date_response( date( 'Y-m-d H:i:s', $customer_1->get_date_created() ) ),
+			'date_modified' => wc_rest_prepare_date_response( date( 'Y-m-d H:i:s', $customer_1->get_date_modified() ) ),
+			'email'         => 'test@woo.local',
+			'first_name'    => 'Justin',
+			'last_name'     => '',
+			'username'      => 'testcustomer',
+			'billing' => array(
+				'first_name' => '',
+				'last_name'  => '',
+				'company'    => '',
+				'address_1'  => '123 South Street',
+				'address_2'  => 'Apt 1',
+				'city'       => 'Philadelphia',
+				'state'      => 'PA',
+				'postcode'   => '19123',
+				'country'    => 'US',
+				'email'      => '',
+				'phone'      => '',
+			),
+			'shipping' => array(
+				'first_name' => '',
+				'last_name'  => '',
+				'company'    => '',
+				'address_1'  => '123 South Street',
+				'address_2'  => 'Apt 1',
+				'city'       => 'Philadelphia',
+				'state'      => 'PA',
+				'postcode'   => '19123',
+				'country'    => 'US',
+			),
+			'is_paying_customer' => false,
+			'last_order'    => null,
+			'orders_count'  => 0,
+			'total_spent'   => '0.00',
+			'avatar_url'    => $customer_1->get_avatar_url(),
+			'meta_data' => array(),
+			'_links' => array(
+				'self'       => array(
+					array(
+						'href' => rest_url( '/wc/v1/customers/' . $customer_1->get_id() . '' ),
+					),
+				),
+				'collection' => array(
+					array(
+						'href' => rest_url( '/wc/v1/customers' ),
+					),
+				),
+			),
+		), $customers );
+	}
 
-    /**
-     * Test getting customers without valid permissions.
-     *
-     * @since 2.7.0
-     */
-    public function test_get_customers_without_permission() {
+	/**
+	 * Test getting customers without valid permissions.
+	 *
+	 * @since 2.7.0
+	 */
+	public function test_get_customers_without_permission() {
 		wp_set_current_user( 0 );
 		$response = $this->server->dispatch( new WP_REST_Request( 'GET', '/wc/v1/customers' ) );
 		$this->assertEquals( 401, $response->get_status() );
-    }
+	}
 
 	/**
 	 * Test creating a new customer.
@@ -139,10 +141,6 @@ class Customers extends WC_REST_Unit_Test_Case {
 			'first_name'    => '',
 			'last_name'     => '',
 			'username'      => 'create_customer_test',
-			'last_order'    => null,
-			'orders_count'  => 0,
-			'total_spent'   => '0',
-			'avatar_url'    => $data['avatar_url'],
 			'billing' => array(
 				'first_name' => '',
 				'last_name'  => '',
@@ -167,12 +165,18 @@ class Customers extends WC_REST_Unit_Test_Case {
 				'postcode'   => '',
 				'country'    => '',
 			),
+			'is_paying_customer' => false,
+			'meta_data' => array(),
+			'last_order'    => null,
+			'orders_count'  => 0,
+			'total_spent'   => '0.00',
+			'avatar_url'    => $data['avatar_url'],
 		), $data );
 
 		// Test extra data
 		$request = new WP_REST_Request( 'POST', '/wc/v1/customers' );
 		$request->set_body_params( array(
-		    'username' => 'create_customer_test2',
+			'username' => 'create_customer_test2',
 			'password' => 'test123',
 			'email'    => 'create_customer_test2@woo.local',
 			'first_name' => 'Test',
@@ -198,10 +202,6 @@ class Customers extends WC_REST_Unit_Test_Case {
 			'first_name'    => 'Test',
 			'last_name'     => 'McTestFace',
 			'username'      => 'create_customer_test2',
-			'last_order'    => null,
-			'orders_count'  => 0,
-			'total_spent'   => '0',
-			'avatar_url'    => $data['avatar_url'],
 			'billing' => array(
 				'first_name' => '',
 				'last_name'  => '',
@@ -226,6 +226,12 @@ class Customers extends WC_REST_Unit_Test_Case {
 				'postcode'   => '',
 				'country'    => 'US',
 			),
+			'is_paying_customer' => false,
+			'meta_data' => array(),
+			'last_order'    => null,
+			'orders_count'  => 0,
+			'total_spent'   => '0.00',
+			'avatar_url'    => $data['avatar_url'],
 		), $data );
 
 		// Test without required field
@@ -275,12 +281,6 @@ class Customers extends WC_REST_Unit_Test_Case {
 			'date_modified' => $data['date_modified'],
 			'email'         => 'get_customer_test@woo.local',
 			'first_name'    => 'Justin',
-			'last_name'     => '',
-			'username'      => 'get_customer_test',
-			'last_order'    => null,
-			'orders_count'  => 0,
-			'total_spent'   => '0.00',
-			'avatar_url'    => $data['avatar_url'],
 			'billing' => array(
 				'first_name' => '',
 				'last_name'  => '',
@@ -305,6 +305,14 @@ class Customers extends WC_REST_Unit_Test_Case {
 				'postcode'   => '19123',
 				'country'    => 'US',
 			),
+			'is_paying_customer' => false,
+			'meta_data' => array(),
+			'last_name'     => '',
+			'username'      => 'get_customer_test',
+			'last_order'    => null,
+			'orders_count'  => 0,
+			'total_spent'   => '0.00',
+			'avatar_url'    => $data['avatar_url'],
 		), $data );
 	}
 
@@ -483,7 +491,7 @@ class Customers extends WC_REST_Unit_Test_Case {
 		$data = $response->get_data();
 		$properties = $data['schema']['properties'];
 
-		$this->assertEquals( 14, count( $properties ) );
+		$this->assertEquals( 16, count( $properties ) );
 		$this->assertArrayHasKey( 'id', $properties );
 		$this->assertArrayHasKey( 'date_created', $properties );
 		$this->assertArrayHasKey( 'date_modified', $properties );
diff --git a/tests/unit-tests/customer/crud.php b/tests/unit-tests/customer/crud.php
index b064dc62d4d..09fc034079f 100644
--- a/tests/unit-tests/customer/crud.php
+++ b/tests/unit-tests/customer/crud.php
@@ -110,8 +110,6 @@ class WC_Tests_CustomerCRUD extends WC_Unit_Test_Case {
 
 	/**
 	 * Tests backwards compat / legacy handling.
-	 * @expectedDeprecated WC_Customer::is_vat_exempt
-	 * @expectedDeprecated WC_Customer::has_calculated_shipping
 	 * @expectedDeprecated WC_Customer::get_default_country
 	 * @expectedDeprecated WC_Customer::get_default_state
 	 * @expectedDeprecated WC_Customer::is_paying_customer