Rules before submission
Some rules are evaluated before submission. These can fire actions that affect the 'Review' page of the form.
An example of an action that must be run before submission is PayBridge, because payment must be taken before the form is submitted. The PayBridge action will change the 'Review' page, by adding some text to say that the payment is required, and changing the label of the button from 'Submit Form' to 'Proceed to Payment'.
Setting a rule to run before submission
To configure a rule to run before a form is submitted, use the dropdown in the When block, and select 'User reaches the end of the form'.
NOTE Individual actions are designed to be fired either before or after submission. XFP will change the list of possible actions based on whether the rule is set to run before or after submission, so only suitable actions can be used.