How to enable prompt?

Question

Hi Everyone, 
 I need to pop up a prompt when user click on update button, if the required fields are left behind. Can anyone please guide me how to achieve this.

Mike Schmitt · Answer

For this the most common and most supported technique is to use field-level and/or form-level validation messages. You could conditionally enable a button confirmation message when some on-form conditions are not met, however this can be tricky to setup and maintain and ends up being a bit of a workaround approach only.