- Class AbstractCollect
- Collects can only be created and deleted.
- Class Adjustment
- Each instance has a permanent state.
- Class AppliedDiscount
- Each instance has a permanent state.
- Class ImmutableInterface
- Marker interface.
- Class Location
- Cannot be modified via the API.
- Class Refund
- Refunds can only be created.
- Class Shop
- Cannot be modified via the API.
- Class User
- Cannot be modified via the API.