We are implementing CA SAM with APM, the Organization and Site data is blank in APM(Please consider APM as ITAM). Please let us know will it have any impact while Data loading in CA SAM.
Also let us know what are the mandatory data required from APM(Please consider APM as ITAM) , while integration and Data Upload in SAM.
Please review the below documentation which may provide some insight:
Integrate CA SAM with CA APM - CA Service Management - 17.1 - CA Technologies Documentation