Quite a regular scenario, I have a Form with few fields including Date fields and a few child records.that user can edit. On doing the Edit and then selection of a certain Option from the OptionSet within Form I want to validate the Form data and the associated child records data and give a Text error message to user in case of failure so that he can correct his data entry. The issue here is that Javascript is not preferable as an option which leaves me with Plugin or Workflow to do the validation and both throw a message which is not exactly user friendly with 'Business Process Error' heading on top. Is there a better way that I can do this or have I hit a wall.