Out arguments not carrying value upon exception

[loginerror (Maciej Kuźmicz)]

Hi @harshilmehta

The reason why that happens is nicely explained here:

Incorrect Value Passed on Boolean Type as an Input/Output Argument

You’re correct, this is a value type/reference type difference. As was mentioned here (and in the linked thread), when a workflow errors out the arguments are not assigned back. BUT, with reference type (which Array and DataTable are examples of) what gets passed is a memory address (pointer). Changes within the child workflow operate on the same memory space, so it’s not really that they’re passed back, but that the values are changed “underneath” (on the heap). This video (and the Part 2 of…

It is something that our team is aware of, and that is all I can say as of now.