During the stock take process, the inventory movement will get freeze and the product status will be changed to inactive in Wareo. The inventory does not get sync to SelluSeller for a product with inactive status on Wareo. Hence the products which are under stock take will get OOS on SelluSeller and marketplaces.
Hence it is suggested to add/inflate stock quantity using prebooking promotion in SelluSeller in case if user does not want products to be out of stock during stock take.
We hope the details above were helpful for you. Please feel free to share with us if require further assistance and will be happy to take it up.