Hi Koji,
I checked the CX Cloud release notes (including the March 2026 updates), and I couldn't find any reference to OAuth client secret length changes or related fixes:
https://help.genesys.cloud/articles/release-notes-for-cx-cloud-from-genesys-and-salesforce/
Since the Test succeeds but Save fails with a length error, it still points more towards a Salesforce-side field or package behaviour rather than something configurable in Genesys.
I also noticed that a newer version (2.27) is available, so it might be worth checking if upgrading changes this behaviour.
Hope someone from the community can also share if they've come across this or found a workaround.
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Phaneendra
Technical Solutions Consultant
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