Validation formulas for an Element are checked under two conditions:

  1. When an Element is edited 
  2. When all the Elements on a page are checked before the user proceeds to the next screen in the form

When an Element is Edited

The first instance of a validation evaluation is when a user edits an Element in the Axsy Mobile App. As an example, if you have a validation formula for an Element ConfirmEmail: ProvideEmail == ConfirmEmail, it is only when you edit the 'ConfirmEmail' Element that the Form will check that the value matches the 'ProvideEmail' Element input. 

Proceeding to the Next Screen in the Form

If the user then decides to go back in the form and edits the input for 'ProvideEmail', the validation formula for 'ConfirmEmail' will not be evaluated until the user progresses to the next screen or edits 'ConfirmEmail' again (if the two Elements are on the same screen).