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3

Use a Task List, e.g. within a project site. For additional information, see this article


1

When you are redirected to the list item page, you need to click “Edit Item” in the ribbon. Then it will redirect to the edit form page with the “Approved/Rejected” options under the columns.


1

There might be a link in the email (if it was developed such a way) that will redirect you to the SharePoint site to approve/reject tasks.


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