Re: Approval request email sends, but when end user clicks Approve, nothing happens
Hi @ mab17,
Could you please share a screenshot about your scenes?
An approval email would arrives with two optional approval format.
When the approval email arrives, you would see the format as screenshot below
You could choose Approve button and make comments ,and the Submit your response in this format.
And if you click the "Show original message",you would see the format as your second photo as screenshot below:

In this format ,if you click the Approval, you will be redirected to the Microsoft flow home page,and you need to submit a response on the Microsoft flow home page to finish the approval.
Please let me know if your issue could be solved.
Regards,
Alice Zhang