Sandbox sellerRegistrationCompleted=false + Developer Support ticket portal failing
I’m testing a newly created eBay Sandbox TESTUSER with the REST Sell APIs.
OAuth is working correctly: the user token is active, its client matches the Sandbox application, the required sell.inventory and sell.account.readonly scopes are present, and the stable seller identity resolves.
Fresh read-only request:
GET https://api.sandbox.ebay.com/sell/account/v1/privilege
HTTP 200:
{"sellerRegistrationCompleted":false}
UTC: 2026-09-26T04:52:27.764Z
x-traffic-request-id: c2578e5250c16cb8901fc3ce887820a72
Other read-only results:
SELLING_POLICY_MANAGEMENT: HTTP 200, {"programs":[]}
Merchant locations: HTTP 500, error 25001, “System error”
Fulfillment/payment/return policies: HTTP 400, error 20403, “User is not eligible for Business Policy”
The same TESTUSER can sign into Sandbox and enter the normal Sell/listing UI, but sellerRegistrationCompleted remains false. No listing was submitted or published.
Legacy ValidateTestUserRegistration was decommissioned in January 2025, and I cannot find a current supported replacement.
Is there a supported 2026 procedure to activate/remediate a Sandbox seller account in this state, or does the TESTUSER require eBay-side provisioning?
I also attempted to submit this through Developer Technical Support, but the ticket form currently fails with:
“Failed to create CRM incident. Incident path not found.”
No marketplace writes or Production calls have been made.
2ewt45
OP2 weeks agoSo this forum, along with the ticket system, are just dead? Did eBay fire all of their staff supporting the API and developers?