The following automations already exist on the Account object;
• A workflow rule that updates a field when a certain criteria is met
• A custom validation on a field
• A How that updates related contact records
A developer created a trigger on the Account object.
What should the developer consider while testing the trigger code?
A. The flow may be launched multiple times.
B. Workflow rules will fire only after the trigger has committed all DML operations to the database.
C. A workflow rule field update will cause the custom validation to run again.
D. The trigger may fire multiple times during a transaction.
D. The trigger may fire multiple times during a transaction.
Explanation:
When working with Apex triggers, developers must understand that a trigger can execute multiple times during a single transaction. This happens due to various factors such as recursive execution caused by workflow field updates, flows, and additional DML operations occurring within the same transaction.
In this scenario:
Workflow field updates can modify record values, which may re-trigger validation rules and other workflows.
Flows can cause additional updates that might also trigger the same Apex code again.
Triggers execute at different points in the transaction lifecycle, meaning multiple executions can occur based on record modifications.
This recursive behavior is essential for developers to anticipate while writing and testing trigger logic. To prevent infinite loops, developers often use techniques such as:
Static variables to track execution status.
Trigger context variables (e.g., Trigger.isUpdate, Trigger.isInsert) to control execution flow.