Current Manage Persons API of SMAX allows only to create/update Person records. Creating/Updating Group/Organization, Location and Configuration Item/Asset items periodically is also required.
Current SMAX provides csv file import feature or you can create/update records by calling RestAPIs with Postman or similar tool. However that is a one time solution and such kind of data have to be created, updated automatically from data sources in periods like every night. So, SMAX APIs for CIT should support calling other SMAX modules like category, location, group etc.