Change Which User Posts in Teams from Post in a Teams Channel Action
When you use the Post to a Teams Channel it will send the post as the person who setup the Teams connector.
Currently there is no feature to change who sends this post from within the action.
ADMIN RESPONSE
Sep 7, 2022
Like other actions in NWC, the post to teams action runs under the context of the connection to ensure the person making the post has the correct level of permission. Unfortunately there is nothing we can do to change this one..