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Denver GreeneDenver Greene 

Visual Workflow Internal Error

I am calling a flow within a flow. The master flow runs perfeclty fine up until the subflow runs. The detail flow runs perfectly fine, the very last thing in it is a screen letting me know the values. Then it get brought to a completely different screen that says "An internal server error has occurred". With the Error ID: 1553215959-66751 (1132121848).

The subflow really just takes a string input from a multi-select choice field and turns it into a collection variable (for looping). Ater a bit of testing it seems that I cannot pass a collection variable from the subflow to the master flow. Is this broken, or is this how it is supposed to be? Is there any way to do this?
BHinnersBHinners
I believe that there are some known issues with collection variables and you are probably encountering one of these.  If you can set up a collection variable as both Input and Output, then it is supposed to let you pass those variables between flows.