I have written some Attribute Rule Constraints in Pro for a feature class that I have published into Portal to use in Collector. The Constraints and Constraint error messages that I have set work perfectly in Pro. However, when go into Collector and trigger a constraint, it simply gives a generic "Unable to submit - Unable to complete operation" message.
So the Constraints themselves work fine. The issue is that my error message explaining what the issue is not transferring over. I know the field users will be confused when it doesn't really tell them what they did wrong that prevents them from submitting the point. Does anyone know if these messages actually transfer over into Collector somehow?