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Question

Difficulty: EasyValidation Rules and Data Quality Enforcement

Match each Salesforce formula function commonly used in validation rules to its primary data quality enforcement function.

  • ISBLANK(expression)Evaluates whether an expression has a value and returns TRUE if it does not contain a value.
  • ISCHANGED(field)Compares the current value of a field to its previous value and returns TRUE if the value was updated.
  • PRIORVALUE(field)Returns the previous value of a field before the current save operation.
  • REGEX(text, regex_text)Evaluates whether a text field matches a specified text pattern format.

Answer

ISBLANK(expression) matches with evaluating if an expression lacks a value; ISCHANGED(field) matches with checking if a field value was updated during the current transaction; PRIORVALUE(field) matches with returning the previous value of a field prior to saving; REGEX(text, regex_text) matches with checking if a text field matches a specified pattern.
Each validation rule function serves a unique purpose: ISBLANK verifies that required data is present, ISCHANGED detects modification during record updates, PRIORVALUE inspects pre-save field values, and REGEX verifies string formatting compliance.

Step-by-Step Solution

1
Identify the primary function of ISBLANK
ISBLANK checks for missing or empty field values.
It returns TRUE when an expression or field is blank.
2
Identify the primary function of ISCHANGED
ISCHANGED checks if a record field value was altered during edit.
It evaluates whether the value currently being saved differs from the record's existing stored value.
3
Identify the primary function of PRIORVALUE
PRIORVALUE retrieves the original field value.
It references the value of a field immediately before the current save transaction.
4
Identify the primary function of REGEX
REGEX compares text to a specified regular expression pattern.
It validates whether the string structure matches required syntax rules such as postal codes or phone numbers.

Key Concept

Salesforce Validation Rule Formula Functions
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Topics

Validation Rules and Data Quality Enforcement

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