I am using Arcgis Desktop 10.4.1 and Arcgis Collector.
I have joined the globalid and rel_globalid as explained here
I almost what I want, except for the counter for the duplicated .jpg files. I want them to have a suffix like _1,_2,_3. This is my result:
How can I add a counter that does the naming in the way I want, and still extracts the attachments?