Sample Providers
Three wizards are provided in directory Samples
of the extension. To activate them, go to Extension Manager,
click on extension External Providers for Direct Mail, tick the corresponding checkbox and click on Update button:

Once activated, you may use \Causal\
as provider. This provider
has a simple user parameter wizard using standard JavaScript.
Another provider \Causal\
shows how you may create enhanced
wizard with a TCA definition instead of a JavaScript-based wizard.
