What others sell you as an extra is a standard feature in Zammad: individual fields. This is all about the fact that no software knows your business as well as you do. So how can the software tell what fields you need? Exactly: it can't.
That's why Zammad lets you create and define your own fields.
Here's an example for a use case:
The Winemaker's Tale
A winemaker uses Zammad to manage communication with dealers and retail customers. For him, of course, the wine is important, as is the vintage and point of sale. So he creates specific fields for these three pieces of information in Zammad. To ensure he doesn’t have to enter the same information over and over again, Zammad supports the use of drop-down menus and multiple selections. In contrast to manual and text-based recording, these fields can also help to make evaluations. Hence the winemaker can evaluate his products and services specifically - and ideally even improve them.