Any ideas on how I can Loop through list A to get/set variables, one being a list name. Then using those variables, loop through other lists on the site. Basically a nested loop.
Problem is I can't specify another list using the variable which is what I am trying to do. The workflow is built on list A.
http://site/_api/_web/lists/GetByTitle('ListA')?$select=ListNameColumn
. I think your issue will be when you update the other lists. Since you can only use the "Update List Item" action if you know the list you are updating. You may have to make another web service call with POST to make the necessary edits.