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Problem with When a file is created or modified (properties only) - Sharepoint Online

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Posted on by lfalonso

Hi. I'm making a flow with "When a File is created or modified (properties only)" to detect a file modification on specific file in specific sharepoint folder and send an e-mail notification. I made a test with small dummy file (a few Kb), and all works well, but when I changed filename to real file that has 150 Mb, flow doesn't work. Later, a message appeared on execution control, telling me that trigger event failed, and ask me to correct it. On execution details of event, appears error 504 - Bad gateway.

Anyone knows what could be wrong? any advise?

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hubertlam 153 on at

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Re: Problem with When a file is created or modified (properties only) - Sharepoint Online

Well, it's been happening for at least 3 weeks in a row for me - and creating a new SharePoint connection doesn't work! Every week I'm having to go in, fiddle with connections, and then it will suddenly work again 😞

I personally have full access permissions (I'm the admin!) and it keeps coming back to me with a 502 error. 😞

502 errorNo amount of new connections will work
v-bacao-msft on at

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Re: Problem with When a file is created or modified (properties only) - Sharepoint Online

Hi @lfalonso ,

It is worth noting that the maximum size of files that can be manipulated in Power Automate at present seems to be 50mb. Have you tested any files with a file size less than 50m?

If file size smaller than 50M can make Flow run normally, I think the problem you encountered should be related to the size of the file.

If you modify a file with a file size larger than 50m, such errors may occur.

In addition, recreating a new connection is also a useful method to solve this kind of problem. Please take a try

Best Regards,