I cant attach an a file in Approvals - "BadGateway" - Error Code 502

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Posted on by AndresFRA

Im refering a flow that was a runnig correcty, but now get this error

Can anybody help me?

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Michael E. Gernaey 53,970 Super User 2026 Season 2 on at

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Hello,

Here are some things to double check.

Verify the full path that is being used to access the file you want to attach.
Make sure the path is accessible
Make sure the file name is correct
Make sure the file is not locked
Verify size of file
Make sure that permissions have not changed on the file.
Make sure the flow still runs as a user that has permissions.
Access the file yourself and verify you can.
If you are using any form of gateway/vpn/virtual network, make sure you can still access it properly from your tenant/subscription/flow
Please let me know if you have checked all of these and still having an issue.
Cheers
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Michael
https://gernaeysoftware.com
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iAm_ManCat 18,256 Most Valuable Professional on at

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Hi, there was some information published about this on the 'Known issues' section of power platform admin portal, but this section is only currently available in the US.

Details for the problem and workaround until they resolve the issue are the following:

Problem

You might encounter a BadGateway, 502, XrmApiServerError, 'Request to XRM API failed', or 'Principal user is missing prvReadAsyncOperation privilege' error when creating an approval.

Workaround

We are working on a fix for this issue. In the meantime, you can resolve this issue by granting the "Approvals Administrator" role the missing privilege in the environment (please note that these actions need to be performed by an administrator).

To grant the "prvReadAsyncOperation" privilege:

Go to Power Platform Admin Center (admin.powerplatform.microsoft.com)

Select Environments

Select the environment in which the error occurs

Select Security Roles > See All

Click the ellipsis (...) next to Approvals Administrator and select Edit

Search for "asyncoperation" (aka "System Job") table (select "Show all tables" if not visible)

Update the read permission to "Organization"

Cheers,

Sancho
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AndresFRA 13 on at

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Hello! Finally I was able to solve the problem, the problem was due to the permissions granted on "Approvals Administrator"

I found this tutorial in power platform known errors:
Go to Power Platform Admin Center (admin.powerplatform.microsoft.com) Select Environments Select the environment in which the error occurs Select Security Roles > See All Click the ellipsis (...) next to Approvals Administrator and select Edit Search for "asyncoperation" (aka "System Job") table (select "Show all tables" if not visible) Update the read permission to "Organization"