Item specifics locked on active listings with sales

Error 21916743 means you tried to revise item specifics on an active listing that has bids, sold items, or pending offers. eBay locks item specifics in those states to protect buyers.

Once a listing has activity, eBay restricts which fields you can change. Item specifics, condition, photos (in some states), and category become locked. Many feed pushes try to update everything every cycle, which trips this error on listings with sales.

1. Check which fields are locked using GetItemFeatures or the Sell API's restriction endpoints.
2. Skip locked fields in the revise call - update only price and quantity.
3. End the listing and create a new one if you must change locked fields.
4. Don't include item-specifics changes in scheduled feed updates by default.
5. Resubmit only the safe fields.

• Bulk-updating item specifics across the catalog and hitting this on every active listing
• Trying to swap photos on an auction with bids (error 21916805)