I have 2 separate streams of data that need to be looped in sync to generate report a report for each loop. 1 will be looped on rows and the other on columns, but both will have matching loop values.
It is a special case where these streams will not be combined into the same table except at the top summary level for calculations. They will be spit into further sub-streams to create graphs for reports. I will try to upload a workflow with some dummy data later for example as well.
I was able to sync the column and group loop starts via control variable, however in the end (since I am going to need to call a second workflow in order to loop and generate multiple reports) it was worth the hassle to simplify the backend by transforming / grouping / pivoting until I could join the sources into a single table.