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critical 21103

Error 21103 — Response Text too long

What this means

Response Text too long. Max length 80 (125 for Taiwan) Characters.

Why this happens

Specific eBay error condition affecting how the listing is processed — see the linked official article in eBay's developer reference for the exact mechanism.

How to fix it

  1. Open the linked eBay developer reference for the specific error number to read the full description.
  2. Identify the affected listing(s) in your seller account and review the offending field.
  3. Make the necessary corrections through your listing tool, API call, or seller hub.
  4. Resubmit and confirm the error clears in the response or in your listing-quality dashboard.

Common pitfalls