When you have already configured many SLA reports and for some reason you need to change the UIM DB name you must execute this procedures:
Open the wasp using Raw Configure.
Click setup on the left panel.
Click Edit Key.
Remove the value on the connection key - set it to a blank value.
Deactive wasp probe
Deactive sla_engine probe
Active wasp probe
Active sla_engine probe
The new DB name will propagate to the sla_engine configuration.
After execute this steps open the SLM
go to SLA reports.
Right click on the reports
Wait around 30 minutes
After this steps the SLA Reports will be regenerated.