SharePoint Flow Bad gateway and error status code 500 or 502

[NickAmos]

I'm developing flows for our SharePoint site. The particular flow looks like the following image. A form is submitted, an existing item called and a variable incremented based on the "get item". A new item is then generated with user information from the form, an existing item updated and email sent to the appropriate person for action.

Until 1 day ago this Flow was operating as intended. I made some changes to the form by adding more questions, then added the same details to columns on a SharePoint list to accommodate the new answers. Then I modified the Flow to handle this information appropriately.

I only added 3 new pieces of information, all of which were text and I've reviewed the data types to ensure that I've not inadvertently set a data type to numerical or an integer or something silly.

The Flow will no longer run and it fails at the "create item" stage above - which is the list item receiving much of the data from the user form. 

Details are shown below - indicating a bad gateway and error code of 502. However some instances throw an error of 500. The error does not appear to be consistent.

In trying to remedy the issue I've;

- Modified data types throughout the form and list entries

- Tried not inputting any data into some fields in the form in case there was a data type mismatch

- Removed the new form questions, List columns and subsequently the new items added to the Flow

- Restarted my machine

- Cleared cache in Google Chrome (after reading other possible troubleshooting relating to cache and error 500/502)

None of these actions have provided any resolution, irrespective of changing back to the original configuration (which was working only 2 days ago).

Can I get more information on what is likely to cause a bad gateway, error 500 or error 502?

Thanks

[v-zhos-msft]

Hi @NickAmos ,

If the error code 500 or 502 appears, the failure is temporary or transient.Click or tap Resubmit to try the flow again.

I suggest you reconfigure and save the flow.

Then take a test to check whether it will work.

Best Regards,

Community Support Team _ Zhongys

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

[v-zhos-msft]

Hi @NickAmos ,

If the error code 500 or 502 appears, the failure is temporary or transient.Click or tap Resubmit to try the flow again.

I suggest you reconfigure and save the flow.

Then take a test to check whether it will work.

Best Regards,

Community Support Team _ Zhongys

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

[NickAmos]

Hi,

I've attempted to re-run the flow around 10 times. None of them are successful. I've also reverted the flow to the original condition, when it was last operational. This did not yield a result.

Neither of these courses of action provide any improvement.

What does error 500 / 502 actually mean? When you say it's a transient error - what do you actually mean? Is there a better course of action than "try turning it off and on again"?

[NeilP]

I'm having the same issues with my flows too yesterday and today. In my case I think it's that Flow isn't talking to OneDrive. Hopefully it gets resolved soon...