Power Automate cannot connect to Logic Apps via http action

Question

In my company we have a Power Automate Flow, which at first receives a string (being an article number) from a Power Apps app, that is entered by the user. This String in turn is supposed to be sent to a Logic Apps app by usage of a HTTP GET action:

As you can see, this request fails to work and the error details say, that the server hasn't received a response from the upstream server. I guess, this would be the Logic Apps app? Below is an image of this app:

This setup used to work untill a couple of months ago. I might add, that I inherited this app from my predecessor, so I wonder, if some subscription ran out.

I hope, someone has an idea, I'd be very thankful.

Answer 1

If you have access to the Logic App, then you should take a look at the previous runs (under Runs History). Like the Flow Run History in Power Automate which lets you see how a flow executed, Logic Apps have an equivalent.

As much of the (important) inner workings of the Logic App likely lies within the Condition block, it's hard to pinpoint an exact cause from the screenshot alone. I suggest having a look at that so that you have a better indication on what / where / how to troubleshoot the actual problem 😃

I would've posted this as a comment but I don't have the reputation points for that yet 😅

Answer 2

I can see that you are using HTTP Get action but you need to use HTTP post in order to send the string to logic apps.

Here is a sample that you can refer to

Flow in my power Automate

Flow in my Logic App

Results:

In Power Automate

In Logic Apps

Answer 3

I found out how to solve the issue: I simply had to set up a new SQL connector and now it works smoothly again. Also, my predecessor typed the filter of the http get wrongly:

"table" was missing, although it is supposed to be used in the Logic Apps app.