Check in your feed that all of the parcels in the order were delivered.
Send a request for missing parts to dropshippingXL customer services, and include:
dropshippingXL customer services will provide you with a list of parts. Share with your end customer to confirm parts missing.
Send the list back to dropshippingXL customer services, who will create a replacement order. Inform your customer.
Note: part replacement can only be offered when the product is shipped in multiple boxes and no solution avaiable after the end of cooling-off period for Japan.