So I'm relatively new to field maps and I am currently trying to add contingent values into a form. I believe I set them up properly in ArcGIS Pro since they seem to work perfectly in that environment, but when I export the layer to my map, the field groups don't show up.
The two fields in the red box need to be dependent on each other. There are 60 some odd preserves over 6 regions and I would like the user to be able to choose the region and select from a shorter list of preserves. You can see on the right that there are no field groups available
However, in Pro you can see the contingent values:
My best guess is I exported them wrong from pro (I just exported the layer with feature class to shapefile then uploaded it as a hosted layer) but I can't find any documentation one way or the other on how it's supposed to be uploaded.
Try sharing that as a web layer from Pro to AGOL and see if that works for you.
Going to a shapefile first will strip pretty much any extended capabilities from the data.
R_
I agree with Rhett, Publish the layer to a Hosted feature Layer.
Plus, there are steps to take to set up contingent values in field map forms document and video are linked here: