Retrieving error from child flows

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Posted on by BM-25070806-0

I have a parent flow which calls several child flows dynamically. Whenever a child flow runs into an error, I get the same response regardless of what error actually occurs within the child flow, response being:

{
"error": {
"code": "NoResponse",
"message": "The server did not receive a response from an upstream server. Request tracking id '08584797789640076192787418582CU24'."
}
}

I have to then go back and run the failed child flows individually with the relevant inputs to figure out what went wrong. I am wondering if it is possible within the child flow to return the error message to the parent flow, such that I can quickly find out what error occurred rather than running the child flow itself? Each of my flows have a response action at the end returning a status code of 200 on success, but nothing other than that. Thanks in advance for any advice.

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Dieter Gobeyn 29 on at

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You received the "The server did not receive a response from an upstream server" error because the child flow did not return any response to the parent flow.

There are two general solutions if you want to perform error handling:

Specific Error Handling (Option 1): For certain shapes where exceptions might occur, perform specific error handling using the run-after: failed configuration and return this response to the parent flow.

Try/Catch Method (Option2): At the end of the flow, catch all errors using the run-after: failed configuration and return this response to the parent flow.

Attached an image for basic illustration of where this could fit into your setup:

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abc 123 784 Moderator on at

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In every flow, I have a variable called strErrMsg. During the child flow, I trap for errors, and write something into said variable when they occur.

In the Respond action, send back the strErrMsg to the calling parent Flow, and react accordingly.

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