When creating a custom Apex class in the TDTM framework, what steps should a developer follow?

The process of creating a custom Apex class within the TDTM (Transactional Data Trigger Management) framework is crucial for ensuring that triggers are managed efficiently in Salesforce. The correct sequence of steps starts with the developer creating the Apex class, which contains the logic that will execute when specific data changes occur. This class acts on the business logic layer where the operations involving the records happen.

Next, developing a test class is imperative to validate the functionality and performance of the Apex class. The test class is responsible for ensuring that the code is functioning as expected and meets the required coverage thresholds set by Salesforce. A well-structured test class will help identify any potential issues before the code goes live.

Finally, establishing a Trigger Handler record is essential for integrating this Apex class into the TDTM framework. The Trigger Handler record associates the custom Apex logic with specific objects and events, enabling the trigger management process to utilize this logic effectively.

By following this sequence—creating the Apex class, then the test class, and finally recording the Trigger Handler—a developer ensures that their implementation is in alignment with best practices for managing triggers and maintaining robust and sustainable code.