How to set different levels for different services of the same check

Hello,

I have been working on a new check to monitor the usage of DHCP scopes in Fortigate firewalls. The check works in general as expected. It uses SNMP to get data from a Fortigate, discovers DHCP scopes and can make use of WATO rules for critical and warning levels. I can set different levels per Fortigate in WATO.

The output of the check is something like

DHCP scope 240       OK - 93% leased out          (leased_IPs=93;95;99;;)
DHCP scope 241       OK - 77% leased out          (leased_IPs=77;95;99;;)

Now, I face situations when I need to have different levels for DHCP scopes of the same Fortigate. How can I do this? Looks like my script is not able to differentiate between services of the same Fortigate. Here is the code for the inventory:

factory_settings["fgt_dhcp_leases_default_levels"] = {
    "dhcp_leases"  : (90, 95),
}
def inventory_fgt_dhcp_leases(info):
  if info:
    inventory = []
    for leasedips, scopeid in info:
        inventory.append( (scopeid, {}) )
    return inventory

Could anyone help me?

Best regards
Hermann Maurer