You can leverage some data from ServiceDesk 7.1 SP1 in ServiceDesk 7.5 MP1.
Before you migrate data to ServiceDesk 7.5 MP1, make sure to import or add your users and groups. Reports cannot match closed tickets to process workers if they have not been created in ServiceDesk.
You can migrate the following ticket types:
Closed Incident Management tickets
Closed Change Management tickets
Closed Problem Management tickets
Closed knowledge base submission tickets
You can access this historical ticket data from ServiceDesk 7.5 MP1 for reporting purposes.
For instructions on how to migrate this data and to access to the migration scripts, see the article Migrate existing closed ServiceDesk 7.0 MR2, 7.1 SP1, and 7.1 SP2 tickets to ServiceDesk 7.5.