Add the CASAM data source in SAM:
1. Login to CA Software Asset Manager as a user in an administrative role
2. Navigate to Admin -> Master Data -> System -> Data Sources
3. Click the + icon to add a new data source
NOTE: The source key and import ID are required (see the * next to the label) and are usually the same
4. After saving the new data source, contact CA Support for a cleanup script to enable the 'initial data load' from APM to be run a second time.