When Are Data Validation Rules Executed?

ABC.

Data validation rules are used to enforce specific constraints on data entry, which helps to ensure data integrity and accuracy within an organization's Salesforce instance. These rules are typically used to prevent users from creating or updating records with invalid or incorrect data.

Now, coming to the question, data validation rules are executed when a user saves a record. Whenever a user attempts to save a record, Salesforce evaluates the record against any active validation rules that are defined for the object. If the data in the record violates any of these rules, Salesforce prevents the record from being saved and displays an error message explaining the issue.

The other options mentioned in the answer are also related to data validation rules, but they do not directly relate to the execution of validation rules. For instance, data validation rules are not executed before records are imported, but data can be validated during the import process using tools like Data Loader. Similarly, data validation rules can also be enforced using API tools, but they are still executed when a user saves a record.

Therefore, the correct answer to the question is A. A User Saves a Record.