REST API is not yet supported for this mailbox

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Posted on 8 Jan 2019 16:27:03 by martinkulp

I'm trying to build a flow, and the connector gives this error message: "REST API is not yet supported for this mailbox." This is happening for a mailbox that has already been migrated to O365 (we have a hybrid environment), so please do not answer with your stock answer that you've answered every other post with: "This happens for mailboxes that have not been migrated to O365. Your mailbox is likely still on a dedicated exchange server. You'll need to request your Outlook administrator migrate your mailbox."

That is NOT the case with me, or many others that have had this problem as I see from researching this problem.

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tfhegdbn 149 on 09 Jan 2019 at 07:28:04

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Re: REST API is not yet supported for this mailbox

Can you be sure that what you said "mailbox that has already been migrated to O365" is indeed in line with the requirements here? ZZ