If a new validation rule is created and there is data already stored that violates the rule, when will Sales force catch the problem? 

Answer options:

A. Immediately
B. When the record is first viewed
C. When the record is edited
D. When the record is edited, then saved
E. The record is not affected because it was created before the creation of the validation rule.

D

When the record is edited, then saved. Validation rules are enforced when a record is in edit mode, but the validation rules don`t fire until the record is finally saved by the end user.