Causes
- This error can safely be ignored as GSMME continues to migrate the objects without the missing field.
Fixes
Step 1: Create A New Administrator Account
If you’re experiencing problems, try to create a new administrator account in Exchange.
Step 2: Ensure Right Box Is Disabled
If you already did this and are using a profile to do the migration, make sure the “Use Cached Exchange Mode” box is disabled and that you check “always allow autodiscovery message” boxes.