eBay API
POST /post-order/v2/inquiry endpoint removal
Stopped workingSubscribe to eBay APIShare
Calls to POST /post-order/v2/inquiry on eBay API stopped working on March 16, 2026.
Calls it hits
POST /post-order/v2/inquiry
What to use instead of these calls
eBay names no replacement for this Post-Order call. You must either handle this step directly on eBay or drop the functionality from your code entirely.
eBay removed the call without a replacement: what the code did with it is a product decision.
In eBay API's words
Decommissioned on March 16, 2026: API calls and types The following deprecated calls were decommissioned and removed from the documentation: - Close Inquiry - Confirm Inquiry Refund - Create Inquiry
Facts
- API
- eBay API
api.ebay.com - Kind
- Endpoint removal
- Takes effect
- March 16, 2026
- Calls after that day
- Fail
- Source
- Announcement
- Last updated
- Verified
- , against eBay API's own pages
Questions
When does this change take effect?
Calls to POST /post-order/v2/inquiry on eBay API stopped working on March 16, 2026.
What happens to calls after March 16, 2026?
They have failed since March 16, 2026.
How do I find the calls this hits in my code?
Okapi reads your repository, finds the calls this change hits and opens a pull request with the fix. It never commits to your branches: every change comes as a pull request you review.
More from eBay API 10
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POST /post-order/v2/cancellation/{id}/confirmEndpoint removal Stopped working -
POST /post-order/v2/casemanagement/{id}/closeEndpoint removal Stopped working -
POST /post-order/v2/casemanagement/{id}/issue_refundEndpoint removal Stopped working -
POST /post-order/v2/casemanagement/{id}/provide_return_addressEndpoint removal Stopped working -
POST /post-order/v2/casemanagement/{id}/provide_shipment_infoEndpoint removal Stopped working -
POST /post-order/v2/inquiry/{id}/closeEndpoint removal Stopped working -
POST /post-order/v2/inquiry/{id}/confirm_refundEndpoint removal Stopped working -
POST /post-order/v2/inquiry/{id}/provide_refund_infoEndpoint removal Stopped working -
POST /sell/marketing/v1/ad_campaign/{id}/launchEndpoint removal Stopped working -
POST /sell/marketing/v1/ad_campaign/setup_quick_campaignEndpoint removal Stopped working
You fixed this one by hand.
Okapi opens the pull request with the fix before the next breaking change reaches your code.