Are you using the same email address in all branches? And what type of email address are you using?
Is it a Shared mailbox in Exchange Online, or is the email by any chance a Groups/Teams email address? It specifically needs to be an Exchange Online Shared Mailbox for that action.
Here are a couple of refence links about this error which might help as well?
I share more #PowerAutomate and #SharePointOnline content on my Blog, Bluesky profile or Youtube Channel
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