Question

What is a validation rule?

Answer 1

Answer:

Validation rules verify that the data a user enters in a record meets the standards you specify before the user can save the record. A validation rule can contain a formula or expression that evaluates the data in one or more fields and returns a value of “True” or “False”.

Explanation:

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Answer 2

Answer:

In short,

Validation rule helps us to limit values that can be accepted into a field.