Cross forest migration

Cross forest migration

Hi
We are currently using ServiceDesk Plus MSP 7605. In the near future we will be migrating all active directory accounts from one forest/domain to a new forest/domain, and for a period of time we will maintain a cross forest trust relationship. I want to be able to migrate an existing Technician from source domain to the target domain and for that Technician to then log into the target domain but access ServiceDesk Plus MSP running in the source domain. Eventually we will also migrate the computer running ServiceDesk Plus MSP, but for a period of time we need to do the above.
 
In case it is not obvious, we want to retain the data integrity after the account migration. i.e. the Technician should be able to see the same data and should have the same requests assigned to them, after the account migration.
 
Is this possible and if so, what do I need to change on the Technician or the configuration of ServiceDesk Plus MSP prior to the account migration, or after the migration?
 
Thanks

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