What is the difference between MTSKU and MPSKU?

MTSKU=global item=Global item . For KRSC sellers, MTSKU can be understood as a virtual item, which is convenient for management.

MTSKU is equivalent to the parent product and can be published to multiple regions to generate multiple product MPSKUs. MPSKUs will directly inherit the basic information of MTSKUs, and the MPSKUs and MTSKUs of multiple regions have the same stock info, so sellers no longer need to manage the some basic info for the same product on multiple regions.The seller only needs to modify the basic information of MTSKU, and the system can automatically synchronize the modification to all published MTSKUs.

MPSKU=item=shop item . The real item visible to buyers.

For KRSC seller, it can only be publish MTSKU to be MPSKU, and direct creation of MPSKU is not supported. It means you can't call the product.add_item to create item now, you need to call the global_product.add_item to create item and then call the create_publish_task api to publish the MTSKU to be MPSKU.

If MTSKU is deleted, all MPSKUs published will also be deleted.