Zammad API understanding for rebuilding

Hallo Zammad Community,
can someone explain to me how the Zammad API works, I mean technically not those videos with birds and whiteboards. We use Zammad in our university and I have the order to rebuild the Zammad API so that it no longer has to send emails for our ticket system to register the messages. However, I’m still quite new to web development and I don’t really understand the data jungle of the Zammad code yet.

Many greetings Highschoolworker

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