I have custom field which I use together with workflow to insure a unique key on two other custom fields. If user tries to enter duplicate values and workflow tries to populate duplicate value into this field then I am getting the following error message:
Error: Invalid Data. Review all error messages below to correct your data. Duplicate value on record: 40 (Related field: UniqueTitleAuthorKey__c)
Is there way I can manipulate this message and provide my own error message ?