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New message when someone joins channel

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Posted on by ChatHSAutomate

We are trying to automate a new joiner message when someone joins a chat. I know this is possible with an out of the box flow but that only works with channels and not chats. We use chats in our organisation instead of channels. Any way we can do this?

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Building flows

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Robu1 1,459 Super User 2025 Season 2 on at

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Hi ChatHSAutomate,

Thank you for choosing Microsoft Power Platform Communities.

Automating a welcome message for new joiners in chats (rather than channels) is a bit tricky, as the out-of-the-box Power Automate triggers are designed for channels.

However, there are some potential workarounds:

Custom Power Automate Flow: You could use the Microsoft Graph API in combination with Power Automate to monitor chat membership changes. When a new member is added to a chat, you can trigger a flow to send a welcome message. This requires some technical setup and permissions to access the Graph API.

Bot Integration: Consider creating a bot using Microsoft Bot Framework or Power Virtual Agents. The bot can monitor chat activity and send automated messages when a new member joins. This approach might require development resources.

Manual Trigger: If automation isn't feasible, you could create a template message that can be manually sent by a team member whenever someone joins a chat.

If this fixes the issue, please mark as resolved to help others with find it.

Happy to help,

Robu1 | Superuser & Moderator

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HS-27030941-0 2 on at

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Thanks for the response

Can you provide some more steps and of how to actually do this in practice

I can't seem to find the graph option to list out the users of a channel or how to use this to identify new users?

Can you demonstrate this with a sample flow?

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