Multisource CMDB retains complete history about discovery sources and proposed values, involved in updates of CI attributes. Use Multisource CMDB data to track how the CMDB is populated by various discovery sources at the CI attribute level. Also, to revert CI updates from a specific discovery source, or to recompute attribute values using updated reconciliation rules.
Multisource CMDB is quite vast to know about the different data sources within the organization.
To enable it, ITOM discovery plugin should be available and also you need to set this property value to true "glide.identification_engine.multisource_cmdb_ci_enabled".
