Hello all,
I have a flow which essentially takes email attachments and uploads them to SP (among other things). I had it set up with my personal mailbox and it was working great. I have since updated it to be triggered by a new email arriving in a Shared Mailbox instead (with the appropriate trigger), and everything still works fine until the "Get Attachment" action. For some reason, I get a "Not Found" error with the Get Attachment action. It seems to be unable to find the Message ID in the shared mailbox, even though the action is identical to how I had it set up with my personal mailbox (formula is triggerOutputs()?['body/id'], but I used dynamic content to avoid errors in typing).
The attachment ID parameter is the attachment's attachment id dynamic content (again, identical to how it was when I had it set up with my mailbox).
I test it manually every time because I've read online that attachments can get corrupted when you test automatically, but automatic tests worked fine when it was connected to my inbox, so that shouldn't be an issue anyways.
Any insight? What have I forgotten? I have sending permissions for the mailbox if that makes a difference.