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Unable to send a one on one chat in teams

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Posted on by dkaaven

So, I try to make Power Automate send a message to my colleague with an update from me, but the only options I have is channel or group chat. I've tried several options and search the internet to no avail.

My approach:

* Create a Chat - Add my colleague

* Post message in a chat or channel -> refer to the Chat I created

Copilots respons to the error:

"It appears that the 'PostMessageToConversation' action is failing because the recipient value does not exist. Double-check the recipient parameter in the action and ensure that it is a valid recipient. Also, make sure that the recipient's email address is correct and that it matches the expected format." Does anyone know how to do this, or if there is a different workaround? Thank you in advance!"

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ManishSolanki 15,091 Super User 2025 Season 2 on at

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Hi @dkaaven

Here is the sample flow.

1. Add "Create a chat" action and set the recipients email (separated by semi colon in case of multiple) and title of the group chat:

2. Next, add "Post message in a chat or channel" action and pass the conversion id dynamically from the output of 'create chat' action:

If this helps & solves your problem, please remember to give a 👍 and accept my solution as it will help others in the future.

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dkaaven 3 on at

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This is the same as I did, but it will not work for just one recipient. Tried to add myself as well, but it didn't work either.

I will do some more testing and share more detailed error messages.

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NishantIchageri 18 on at

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1.Add singe user in "Add a Chat" action. Do not include any title(its not mandatory)
Use the same Conversation ID in "Post message in a chat or channel". It works and tested.

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