I am planning to migrate from MIIS to FIM for galsync.
I got the following useful advise here.
If you are planning to install FIM from scratch and re-import all users from all forests you can then make the test mentioned where you sould selectonly the user/s OU to import for the test and leave in the target OUonly the contact/s for the test.
The steps should be (example on two forests):
1. Un-check "Enable Provisioning Rules Extension" (from the tools--> options)
2. full import (stage only) from ForestA MA
3. full import (stage only) from ForestB MA
4. full synchronization from ForestA MA (Project users of ForestA)
5. full synchronization from ForestB MA (Project users of ForestB and Join contacts of ForestA)
6. full synchronization from ForestA MA (Join contacts of ForestB)
7. Re-check "Enable Provisioning Rules Extension"
Remark: of course, each MA is a Source and also a Target
You will find all the information needed for GALSync in the following link: Global Address List Synchronization (GalSync) Resources
There are some questions I have.
1 Un-check "Enable Provisioning Rules Extension" enable to ignore to call provision function of MV rule extension when synching ?
2 If we fail to join some of existing contact objects, is therer any negative impact to production environment if we delete those GALMA and CS objects of FIM ? I would like to think about recovery plan.