https://userapps.support.sap.com/sap/support/knowledge/en/3019241
3019241 - How to find the Monitoring Object Technical ID of a Key Figure in KPI Catalog | SAP...
You would like to know the "Monitoring Object" technical name of a KPI from KPI Catalog, in order to user it in TBI_REPORTS or perform troubleshooting in BPOps...