Sub-Flow Output Error in Flow?

[Matthew Gill]

I am calling Sub-Flows within a Flow. The Sub-Flows return [status] which is a True/False variable. The Sub-Flow tests correctly, but when it is called from the Flow the Sub-Flow completes, returns the appropriate output when looking at the subflow execution details, but the Flow execution details show an error for the Sub-Flow task. 

It is as if the Sub-Flow output variable is not being passed back to the Flow. I have ensured that the variable types are the same, and the Sub-Flow is set to 'Wait for Completion). Any advice or guidance is appreciated. Thank you!

[OlaN]

Okay, that's an issue for sure.

Do you get the same result if you checked/unchecked the "wait for subflow to complete"?

Might be a bug, so I would contact support to get additional help.

[Matthew Gill]

I appreciate the guidance and advice. I have a ticket with support. I will reply once I get some info back. Thanks everyone!

[Daniel Oderbolz]

This is a little concerning. I hope support raised this to the developers, because if you manage to create a stack overflow with this, it implies that the XML parser is not very robust.

Just my 2 cents.

[Matthew Gill · Accepted solution]

Alright... Support figured out what the issue was.

Even though the error was being shown on the Sub-Flow call, the issue was actually failing on the Update Record Action. Specifically, updating the 'Actual Start' field. I was updating to " return ( new Date() ); "; however, that field requires a String, for some reason, and was not giving a good Error Code. The workaround is to update to " return ( new Date().toString() ); ". Not ideal, but it works...

Thanks everyone for helping!

[OlaN]

Good that it's solved, please also close this thread by marking your own answer as correct.