i have a situation where I need to throw an error when any use tries to edit the master record. It has one or more child records associated with it.
- i came up with something, like i had a roll-up summary for the master record which gives the count of the associated child records.
- now I want to put a validation rule on the Master object using the Roll up summary field.
- I am stuck with the validation rule part.
is it feasible this way, or a trigger is required ?