Hi, I am trying to set up a single line field to validate input. But this input would depend on a data source's stored procedure that returns a true/false value. I was hoping to make this field give a validation error if the entry already exists within my data source. Is this possible?
I was able to set up my data source and return true and false to another single line field. I could just compare against that field but I am not sure how to do so.
Thank you for your help,
James