To create a custom Apex class in the TDTM (Table Driven Trigger Management) framework, follow these steps:

Create the Apex Class:

In Salesforce, go to Setup.

Navigate to "Apex Classes" under "Custom Code".

Click "New" and create your custom Apex class.

Ensure the class implements the TDTM framework correctly.

Create the Test Class:

Create a corresponding test class to ensure your Apex class functions as expected.

This is essential for maintaining code coverage and passing Salesforce deployment requirements.

Create a Trigger Handler Record:

Go to the TDTM Trigger Handlers tab.

Create a new Trigger Handler record and link it to your custom Apex class.

Define the order of execution and the object the trigger applies to.

These steps ensure that your custom Apex class is correctly integrated into the TDTM framework, maintaining organized and manageable trigger logic.