Create an Interface Implementation

As part of overriding the 255-character limitation, you need to create an interface implementation.

1. In your org, go to the App Launcher and click Interface Implementations.

2. Click New.

3. In Interface Name, enter DCAPIParamsInterface.

   Ensure that you name this interface correctly. When this interface exists, the parameters specified in this iinterface override the default parameters.

4. In Active Implementation Class, enter the name of the Apex class that you just created, DCAPIParamsImplementation.

5. Click Save.

6. Click Related.

7. Go to Interface Implementation Detail and click New.

8. In Available Implementation, enter the name of the Apex class that you just created, DCAPIParamsImplementation.

9. Click Active to activate this implementation.

10. Click Default to set this as the default implementation.

11. Click Save.