Woocommerce Order API Line Item ID changes on update

php json wordpress woocommerce woocommerce-rest-api

This is definitely an issue with the personalization plugins you mentioned, because woocommerce on its own does not create a new line item on update as evident from the code belowhttps://github.com/woocommerce/woocommerce/blob/master/includes/api/legacy/v2/class-wc-api-orders.php#L867

protected function set_line_item( $order, $item, $action ) {$creating  = ( 'create' === $action );

   if ( $creating ) {      $line_item = new WC_Order_Item_Product();    } else {      $line_item = new WC_Order_Item_Product( $item['id'] );    }

I would strongly recommend you to disable the customisation plugin and try.

CodeHunter