{"error":"invalid_grant","error_description":"the provided authorization grant code is invalid or was issued to another client"}
XML payload: <?xml version="1.0" encoding="UTF-8"?>
<GetUserRequest xmlns='urn:ebay:apis:eBLBaseComponents'>
<RequesterCredentials>
<eBayAuthToken></eBayAuthToken>
</RequesterCredentials>
<DetailLevel>ReturnAll</DetailLevel>
</GetUserRequest>
XML response: <?xml version="1.0" encoding="UTF-8"?>
<GetUserResponse xmlns="urn:ebay:apis:eBLBaseComponents"><Timestamp>2024-04-28T10:49:12.850Z</Timestamp><Ack>Failure</Ack><Errors><ShortMessage>Auth token is invalid.</ShortMessage><LongMessage>Validation of the authentication token in API request failed.</LongMessage><ErrorCode>931</ErrorCode><SeverityCode>Error</SeverityCode><ErrorClassification>RequestError</ErrorClassification></Errors><Version>1207</Version><Build>E1207_CORE_APISIGNIN_19151597_R1</Build></GetUserResponse>
Create Your Authentication Token for Easy Auctions Tracker