If you open Create Merchant SKU Automatically Funtion, when syncing orders, if the new orders items have no matched Merchant SKUs to map, BigSeller will automatically create new Merchant SKUs for them.

And when do we think they have a matched Inventory SKU?

- It has already mapped with one Merchant SKU on BigSeller.
- It has a same SKU as one of the Merchant SKUs on BigSeller.