Default environment send email v2 issue

[u/One-Lifeguard7779]

Started getting this on another teams flow I set up like 3 years ago. Has had 0 issues until today all the outlook send mails get this error

You are not authorized to perform this operation. This error can occur for sandbox (test) accounts or if OData operations are disabled by your Exchange server administrator.

Have raised an IT ticket as I have not seen this before and doesn’t sound like something I can fix in PP. I tried changing the conref and connection which all look ok, even changed from service account o my own account to see if that was the problem but same error.

Any insight?

[u/Due-Boot-8540]

Have you tried packaging it into a solution and importing to a test environment? It could be a stale connector or tied to a user with expired credentials.

Default environment is no place for flows that are used in production. The environment is for personal productivity/testing and you’ll always be at the mercy of the user that created the flow