I am trying to perform cross forest migartion from Exchange 2003 to Exchange 2010. I have created a GAL Sync between exchange 2003 and Exchange 2010 using Fim 2010. This creates mail enabled contact but it does not create mail enabled user. Then i need to use Prepare-MoveRequest.ps1 to convert this mail enabled contact to mail enabled user.
ILM 2007 has a customized sample code to create mail enabled users directly. Below the reference link. Do we have similar option on fim 2010 ?
I know it's not exactly what your looking fro but check out the first table and compare your attribute flow.