eBay allows revising product QTY to 0 if you use the out-of-stock feature.
It is useful when you are out of a particular product but you are planning to sell it again with the same eBay item ID. So, instead of stoping the listing and then creating a new one when the inventory arrives, you can use the Out of Stock feature to hide the listing from the site. Then when you have the item available, automatic or manual Revise will update the inventory and the listing will appear again.
To enable the out-of-stock option:
- Navigate My eBay > My Account > Site Preferences > Selling Preferences on eBay Seller Center
- Under Selling Preferences, click Show next to Sell Your Item form and listings
- Click Edit next to Use the out-of-stock option
- Select the checkbox, then click Apply.