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Advocate II
Advocate II

"When a site has requested to join a hub site" Seems To Be Fundamentally Wrong

The aforementioned flow / power automate flow appears to be fundamentally wrong.


I can't find it in the triggers listed in the docs that it links to in the 'Learn more' itself:

Plus the description of it at C-SharpCorner (search that + trigger) confirms that it seems broken.


Basically, you need to define the site AND the hub ID before being able to use the trigger. So basically it seems like it only exists to stop (or allow) one specific site from joining one specific hub.


Surely that's not the case, is it? It would seem like the intended functionality (by the language of the connector) would be when *any* site requests to join a specific hub site.


Am I not seeing something? (also, obviously, there's no anger here ... just confusion!)

Community Support
Community Support


Hi @Eliot ,


Thank you for your feedback! This seems to be a newly added feature. To be honest, I am also the first to contact this connector. There is no explanation of this trigger in the documentation. I tried searching for relevant documentation about this trigger, but nothing was gained.

Only this:


Best Regards,

Community Support Team _ Barry
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Thanks, Barry, here's hoping someone has a solution for this! 🙂

New Member

Apparently, the process to get this action to work is different.

On the Hub site: Navigate to Edit hub site settings -> select "Require approval for associated sites to join" and then select "SAVE", this will prompt a couple of popups to enter approvers and other details. A flow is dynamically created for you.

One can navigate to Flows admin center and review or customize the flow further.


But i guess something is triggered/configured behind the scenes when done this way, instead of creating a flow and trying to use the trigger action "when a site has requested to join a hub site".

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