Mention a MS Teams Channel using Power Automate

[Jotad710]

Do you know if it's possible to mention "@" a MS Teams Channel if I follow these steps: https://docs.microsoft.com/en-us/business-applications-release-notes/october18/microsoft-flow/post-r...?

If not, is there any other way?

[manuelstgomes]

HI @Jotad710 

Unfortunately, it's not possible to @mention someone. It would be super handy, though. I think this is worth submitting as an idea for future implementation:

https://powerusers.microsoft.com/t5/Flow-Ideas/idb-p/FlowIdeas

If I have answered your question, please mark your post as Solved.
If you like my response, please give it a Thumbs Up.
​
Cheers
Manuel

[Jotad710]

According to this thread: https://powerusers.microsoft.com/t5/Building-Flows/Can-you-Mention-anyone-in-Teams-from-a-flow/m-p/2... is possible to @ someone. I'm not sure if it's possbile to @ a MS Teams Channel.

[edgonzales · Accepted solution]

@Jotad710 

Hey there - Are you ok posting as the flow bot?  If so, check this article from Dennis (capitalizing on John Liu's post) about at-mentioning an entire channel.

Mention a channel with Flow

Hope that helps, keep us posted.

-Ed-

If you liked this reply, please give it a thumbs up! If this reply has answered your question or resolved your challenge, please consider marking it as a Solution. This helps other users find it more easily via search.

[aymalvin]

Hi @edgonzales ,

I am very new at this and I would like to use this @mention to ping my team daily for tasks.

How do I also get the team and channel IDs? His instructions are initializing the variable only. 
The ChannelPostUrl variable Url also looks to be dated. When I go to graph.microsoft.com/beta/teams it returns 

  "code": "InvalidAuthenticationToken",
    "message": "Access token is empty.",

[edgonzales]

@aymalvin 

Hi there - If you haven't already, check out the Graph API Explorer.  It's a handy way to find quick bits of information like those ID's, and also details out the URL/URI needed to do some really cool things.

Keep us posted.

-Ed

[stevenls]

hey,

Is there a way to do this without the Invoke - it is a premium element of Flow and I cannot get that enabled.

I have mentioning working for individuals by pulling information out of a message card and then using that as a variable and then the <at></at> that variable.  Would love to have this as a solution for the channel members, just can't figure out what to do with the 'channel' link info I have.

[cimaja]

Do you want to @mention a channel or teams vote here ->
https://powerusers.microsoft.com/t5/Power-Automate-Ideas/Possibility-to-mention-a-MS-Team-channel/id...

[shavora]

I copied the code and only replaced the channel in it and it says it has an invalid json schema when running. Could the code be too old maybe? @edgonzales 

[Expiscornovus]

Hi @shavora,

I see that code might be coming from one of my blogs 😁.  It has been a while since I checked if it still works (Sep 2021).

Just tested it, it should still work. Only difference is that I would now use the v1.0 endpoint, not the beta.

Btw, this should also be possible via the Send an HTTP request (Office 365 Groups connector) action, which is non-premium 😉

1. My setup of today. Same json payload.

2. Test result today.

[shavora]

Yeah, it's strange, I get still "The response is not in a JSON format" on that action.

I read now that I need an app registered for it to work, and the other action you mention will be a good choice. Thanks 🙂

[Expiscornovus]

Hi @shavora,

Definitely try that other action as well 👍

Btw, also make sure that in the Invoke an HTTP request action connection is using https://graph.microsoft.com as the Base Resource URL and Azure AD Resource URI values like in the screenshot below.

That is also typically a setting which is easily forgotten.

[shavora]

That created other issues 😅 

channel.displayName cannot be null or whitespace. (Parameter 'channel.displayName')

[Expiscornovus]

Hi @shavora,

I am happy to help out, shall we try and solve those issues in a new thread?

[shavora]

Yay, ill tag you!

[MT_8866]

hey any chance you've come across error 400, URI path is not a valid Graph endpoint, path is neither absolute nor relative or resource/object is not supported for this connector.

i mean, there's loads of threads about it, been reading through those for the past few days, neither seems to be presenting viable solutions in my case. at this point i'm inclined to think api might have been blocked? due to security perhaps?