In the approval flow, is there any precondition of a users who is assigned as an approver?
In my case, I got the error message:
The approver "andrew..." is a normal office365User and doesn't have Dynamics 365 license. When I changed the approver to another user who has Dynamics 365 licnese, then the flow works. Should the appover in the flow have the Dynamics 365 license? I guess not, but what the problem is?