Option 1 :
Orders created through the TikTok shop need to be fulfilled on the Orders page in Shopify, then Shopify sync orders to POP. Then the IT department only needs to test Shopify’s synchronized order process, the customer downloads the tracking number to TikTok Shop.

Option 2 :
If you have any third-party order management app connected to your TikTok shop, like orderdesk or shipstation. Please contact us at busienss@popcustoms.com with details and we’ll test on our end.

Option 3 :
If no any third-party order management app is connected, POP thinks we’ll have to go for TikTok shop API.

TikTok shop has a seller developer which is just for your shop.

https://partner.tiktokshop.com/doc/page/63fd743e715d622a338c4e9c

please follow this guide to create a seller developer account for us. It’s required to provide the company information and seller verification, so, it’ll be easier for you to create the account.