Authorizations in SAP Business One for Service Layer

Hi Guys,

I want to use SAP B1 authorization in Service Layer.
If i set general authorization for sap system objects it works in Service Layer. But additional authorization (need for my UDO) does not work (i think it's because of form ID).
Is there other way to set authorization for my UDO in SAP B1 and use it in Service Layer?

Thanks