Is there a way delete CI(s)(Configuration Items) in Service Desk CMDB?
Unfortunately, there is no function nor any supported way within Service Desk to delete CI(s)(Configuration Items). CA Service Desk Manager does not allow you to remove data for auditing reasons. Also this is meant to preserve database referential integrity. The configuration item's data will be stored in several tables in the MDB.
If you have unnecessary configuration items, you need to change the status from active to inactive with the configuration item in UI or using GRloader utility.
So, the MDB will continue to store the configuration item in an inactive state.
Please note if you find alternatives tools or function(ex: pdm_load) to delete CI(s), it will not be supported by CA Support.