SellingIOWhat SellingIO does
One catalogue behind TikTok Shop, Shopify, and your offline store.
SellingIO syncs products, inventory, and orders across the channels you connect. You keep one product record in SellingIO; each channel is a projection of that record, not a second master copy.
One canonical catalogue
The canonical catalogue is the product record SellingIO treats as source. Variants live there. The stock number lives there, on a warehouse. A listing on TikTok Shop, Shopify, or an offline store is mapped back to that record.
When you sell on one connected channel, the shared stock number drops and the other connected channels update to match. Orders from every connected channel land in one list.
The words this page used — catalogue, channel, warehouse, mapping, push, pull — are defined in key concepts.
Channels that are live
These are the channels you can connect today.
| Channel | Status |
|---|---|
| TikTok Shop | Live |
| Shopify | Live |
| Offline store | Live |
| Shopee | Not live |
Shopee is not a live channel. Do not plan a Shopee connection in the current product.
What connecting a channel does
Connecting does not overwrite a live shop. The first step pulls listings that are already selling into the canonical catalogue and keeps the link to the listing on the channel. Pushing a product to a channel is a separate action you choose from that product's Channels tab.
TikTok Shop and Shopify connect through each platform's own OAuth. There is no CSV file to import.
What to do next
Create an account
Registration is self-serve on the SellingIO merchant dashboard, with no card. The steps are in create an account.
Set timezone, currency, and the default warehouse
Those three values are painful to change after you have listings and orders. Set them first: first-time setup.
Learn the words the rest of the docs use
Read key concepts before you connect a channel. Every later guide assumes those definitions.
How to check it worked
You can name the three live channels and you know Shopee is not one of them. You can point at the canonical catalogue as the record channels project from, and you know a connection starts with a pull, not a push.
Shopee is not a live channel
Shopee is not available to connect. If a shop today is only on Shopee, SellingIO cannot sync it yet. Connect TikTok Shop, Shopify, or an offline store instead.