Create an OAuth API endpoint for external clients
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‎02-15-2024 05:34 PM
"Exception on token flow - unsupported_grant_type_for_pkce: Grant type password is not supported. PKCE only supports authorization code flow: no thrown error". This is the system log message after I sent a request to get the refresh token from Postman . I has created new rest user with web service access only, grant_type is also "password". I found that there was no post or same issue related this error.
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‎08-08-2024 05:23 AM
same issue, any resolution?
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‎08-20-2024 01:25 AM
Hi @Community Alums and @PLaxmiPrasanna, the Grant type for non interactive user can only be JWT Bearer or Client Credentials see https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0818290.
Greets
Daniel
Please mark reply as Helpful/Correct, if applicable. Thanks!
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‎02-11-2025 12:56 PM - edited ‎02-11-2025 12:57 PM
A similar error string can happen if you are missing the property
glide.oauth.inbound.client.credential.grant_type.enabled
https://www.servicenow.com/docs/csh?topicname=create-cc-sys-prop.html&version=latest
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‎04-21-2026 01:24 PM
This got me past one hurdle! I followed it up with this to get me the rest of the way to my goal.
