When Basic Inventory is received from an agent, the computer's status is changed from 'Retired' to 'Active'
ITMS 7.x, 8.x
Computers with a 'Retired' status will not change to 'Active' if Basic Inventory for that computer was received. Full Inventory was one of the ways to do that. See KB 179446 "Retired computers don't automatically change back to active"
This is not considered a defect. This behavior was introduced with SMP 7. Changing from 'Retired' to 'Active' is expected.
Development added an option into the CoreSettings.config to stop Basic Inventory from overwriting the resource status currently on the NS:
Steps to stop the status from changing to Active when Basic Inventory is sent in by the agent:
1. Open the "Coresettings.config" file
2. Search for the attribute "ReactivateResourcesWhenInventoryReceived"
3. Change value from "True" to "False"
See also KB 153068 "Resource Status is being overwritten on the Parent server in hierarchy or when Basic Inventory is received" for related issue.