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'When keywords are mentioned' trigger

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Posted on by JS-05112119-0

I cannot seem to get the 'When keywords are mentioned' trigger to run when multiple keywords are used and there's a comma that is separating them.

I can confirm the same flow runs properly when all but one word is used and the comma's that separate them are omitted.

Did they change how this trigger works without updating the action help text?

Anyone else having this issue?

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trice602 15,402 Super User 2025 Season 2 on at

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Hi there!

The issue is that trigger can be unstable and not dependable. I recommend you change to 'when a new chat or channel message is added'.

That trigger is only going to check for New messages every one or two minutes but is very dependent for high volume messages.

You can also put your keywords and phrases in a trigger condition or if your message traffic is less than 100 day, just add a condition below the trigger. Your choice.

I stopped using keyword trigger and recommend you switch as well.

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JS-05112119-0 15 on at

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Thanks for the suggestion, trice602, but switching and using the 'when a new chat or channel message is added' trigger doesn't sound like it would be optimal when dealing with a busy group chat. Having the flow constantly trigger could easily hit the cap of flow actions depending on what you are having it do within a very active group.

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JM-06032314-0 10 on at

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Hi,

I'm having the same issue, several flows that had been working just fine and detecting all keywords suddenly stopped triggering, documentation of the trigger doesn't seem to have changed, it still says that the "Keywords to search for" parameter should be "A comma separated list of keywords to search for".

Since the trigger is only working with one keyword now I resorted to creating multiple copies of the flow, one for each keyword, this of course is less than ideal, but does the job for now. I'd suggest contacting the admin and trying to raise a ticket to Microsoft's support, I'll be doing the same so that maybe we can get someone to look into this.

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stevegeall 5 on at

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I had something similar happen recently. Up until a few days (I have successful Power Automate flow runs from last week), the flow has been happy running with the 'Keywords' trigger setup like:

"#one","#two","#three","#four"

"A comma separated list of keywords to search for" <-- as the tooltip shows for the field.

This has been running for years like this.

Now within the last ~week it has stopped triggering and the flow shows an error of:

The request has SAS authentication scheme, 'MSAuth 1.0' authorization scheme or internal token scheme. Only one scheme should be used

Initially I tried recreating connections etc, seemed to be a user/auth problem? But then I changed the trigger keywords string to use single-quotes instead of double-quotes and the error went away!

'#one','#two','#three','#four'

Did if fix the problem though? No. The flow wasn't being triggered.

Finally, got it working by first creating an array of keywords then joining them with a ',' character via the following formula in the "Keywords to search for" field:

join(createArray('#one','#two','#three','#four'),',')

So in case anyone comes across this post and has the same problem - use this formula instead of the plain string list.

3 people found this reply helpful.

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