Summary

In this chapter, we saw how to make our code extensible by using the Handled pattern and interfaces, and we saw how to create dependent extensions in order to create customizations of a base application and to create modular solutions.

In the last part of this chapter, we created a new extension that modifies the standard behavior of our base extension, and we looked at the concept of dependency between extensions.

You learned how to create customizations without modifying the base code of your application, and now you’re ready to create maintainable and modular applications for Dynamics 365 Business Central.

In the next chapter, we’ll see how to handle some advanced topics with AL and the extension model, such as access modifiers and isolated storage, error management, asynchronous programming, JSON and XML management, cryptography, and more.

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