Fixed – MisMatchingOAuthClaims – One or more claims either missing or does not match with the open authentication access control policy error – OAuth Authentication for HTTP Request trigger (Power Automate)ismatch


Recently, while trying to invoke the HTTP Request trigger, an error occurred stating "MisMatchingOAuthClaims - One or more claims either missing or does not match with the open authentication access control policy." It was discovered that the error was caused by a missing trailing slash in the resource value while generating the token. After correcting the resource value and using the new generated token, the mismatch claim issue was fixed. The article provides more details on configuring OAuth authentication for HTTP Request triggers in Power Automate.


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