get https://de1.api.central.arubanetworks.com/network-config/v1alpha1/ap-system//zonename
This configures a zone name for the AP. You can configure zone settings on an AP and the SSID profile, to assign an SSID to a specific AP.
To assign an SSID to a specific AP, the AP zone name must be configured on the WLAN SSID profile.