Invalid return policy

Error 21916328 means a return policy was supplied but isn't valid for the category, region, or seller account. The listing is blocked until the policy is corrected.

Common triggers: a 14-day return window in a category that requires 30+, a return policy from another marketplace site (eBay UK policy on a US listing), or a policy referencing a non-supported method (ship-to-store) for the targeted region.

1. Confirm the policy length meets the category minimum (often 30 days).
2. Use a policy from the same eBay site as the listing.
3. Drop unsupported methods (ship-to-store) from the policy.
4. If you sell across sites, maintain one return policy per site.
5. Resubmit and confirm the listing publishes.

• 14-day return windows in categories where eBay enforces 30
• Cross-site policy contamination after a feed migration