- Log in to eBay Seller Hub and open the Overview page. Look for a red banner or a task asking for additional information (business details, identity, tax or bank information).
- Check eBay Messages for a message titled along the lines of "Action required" and follow its link.
- Complete every step eBay asks for. Verification can take from minutes to a few days.
- Once Seller Hub shows no open tasks, go back to 3Dsellers, open the listing and click Publish again.
How to prevent it
Complete every setup step in eBay Seller Hub before connecting a new account to bulk tools, and check Seller Hub notices whenever eBay emails about account verification.