I have previously been updated domains through the ArcGIS Solutions Add-In for the Citizen Problem Reporter. I have updated to ArcGIS Pro version 3 and it no longer compatible. Is this something someone else has come across? Thankfully my intern's computer had not been updated yet so I was able to update what I need to work on; however, is there a workaround to update a domain on a view layer like in the Citizen Problem Reporter in ArcPro or Online without using the Update Domain tool?