diff --git a/includes/api/class-wc-rest-orders-controller.php b/includes/api/class-wc-rest-orders-controller.php
index 16321ec29bd..ebd363612f2 100644
--- a/includes/api/class-wc-rest-orders-controller.php
+++ b/includes/api/class-wc-rest-orders-controller.php
@@ -1013,7 +1013,7 @@ class WC_REST_Orders_Controller extends WC_REST_Posts_Controller {
 					foreach ( $request[ $line ] as $item ) {
 						// Item ID is always required.
 						if ( ! array_key_exists( 'id', $item ) ) {
-							throw new WC_REST_Exception( 'woocommerce_rest_invalid_item_id', __( 'Order item ID is required.', 'woocommerce' ), 400 );
+							$item['id'] = null;
 						}
 
 						// Create item.
diff --git a/includes/api/legacy/v2/class-wc-api-orders.php b/includes/api/legacy/v2/class-wc-api-orders.php
index f06a909ef8a..ce93ccc5e4c 100644
--- a/includes/api/legacy/v2/class-wc-api-orders.php
+++ b/includes/api/legacy/v2/class-wc-api-orders.php
@@ -575,7 +575,7 @@ class WC_API_Orders extends WC_API_Resource {
 
 						// Item ID is always required.
 						if ( ! array_key_exists( 'id', $item ) ) {
-							throw new WC_API_Exception( 'woocommerce_invalid_item_id', __( 'Order item ID is required', 'woocommerce' ), 400 );
+							$item['id'] = null;
 						}
 
 						// Create item.
diff --git a/includes/api/legacy/v3/class-wc-api-orders.php b/includes/api/legacy/v3/class-wc-api-orders.php
index 1c29b8d8b7f..a4b3bd67fb4 100644
--- a/includes/api/legacy/v3/class-wc-api-orders.php
+++ b/includes/api/legacy/v3/class-wc-api-orders.php
@@ -609,10 +609,9 @@ class WC_API_Orders extends WC_API_Resource {
 					$update_totals = true;
 
 					foreach ( $data[ $line ] as $item ) {
-
 						// Item ID is always required.
 						if ( ! array_key_exists( 'id', $item ) ) {
-							throw new WC_API_Exception( 'woocommerce_invalid_item_id', __( 'Order item ID is required', 'woocommerce' ), 400 );
+							$item['id'] = null;
 						}
 
 						// Create item.
diff --git a/includes/cli/class-wc-cli-order.php b/includes/cli/class-wc-cli-order.php
index 063ce272231..4e83ed6b5df 100644
--- a/includes/cli/class-wc-cli-order.php
+++ b/includes/cli/class-wc-cli-order.php
@@ -473,7 +473,7 @@ class WC_CLI_Order extends WC_CLI_Command {
 
 						// item ID is always required
 						if ( ! array_key_exists( 'id', $item ) ) {
-							throw new WC_CLI_Exception( 'woocommerce_invalid_item_id', __( 'Order item ID is required', 'woocommerce' ) );
+							$item['id'] = null;
 						}
 
 						// create item