PDI Question #217: Real Exam Question with Answer & Explanation

Question

A developer created a trigger on the Account object. While testing the trigger, the developer sees the error message 'Maximum trigger depth exceeded'. What could be the possible causes?

Options

• AThe developer does not have the correct user permission.
• BThe trigger is getting executed multiple times.
• CThe trigger is a a helper class.
• DThe trigger does not have sufficient code coverage.

Explanation

The 'Maximum trigger depth exceeded' error typically indicates that a trigger is recursively calling itself or other triggers, leading to an excessive number of executions within a single transaction.

Common mistakes.

• A. User permissions control what data a user can access or actions they can perform, but they do not directly cause a 'Maximum trigger depth exceeded' error related to trigger recursion.
• C. Whether a trigger uses a helper class or not is a code organization pattern; it does not inherently cause a 'Maximum trigger depth exceeded' error, although a helper class could contain logic that leads to recursion.
• D. Insufficient code coverage is a metric for test quality and deployment readiness, not an error that occurs during trigger execution itself; it would prevent deployment but not cause a runtime execution error like trigger depth.

Concept tested. Trigger recursion and governor limits

Reference. https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_triggers_recursion.htm

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