Match each Salesforce validation rule formula function to its primary data quality enforcement use case.
- REGEXValidates that a field entry matches a specific character pattern, such as a Zip Code or phone number.
- VLOOKUPCompares a field value against a column in a custom object to verify reference data.
- PRIORVALUEReturns the previous value of a field prior to the current save operation.
- ISCHANGEDDetermines if a field's current value is different from its saved value.
Answer
REGEX matches pattern validation, VLOOKUP matches custom object column value validation, PRIORVALUE retrieves the pre-save value, and ISCHANGED detects field value changes.
Each validation rule function serves a distinct purpose: REGEX verifies string patterns, VLOOKUP checks values against custom object columns, PRIORVALUE fetches historical values prior to save, and ISCHANGED evaluates whether a field has been updated.
Step-by-Step Solution
Key Concept
Validation Rule Functions and Data Quality Enforcement