Reduce Disruption During the Migration to Enterprise Territory Management
Where: This change applies to Lightning Experience and Salesforce Classic in Performance and Developer editions and in Enterprise and Unlimited editions with the Sales Cloud.
How: Contact Salesforce Customer Support to enable the enableRemoveTMGroupMembership field in the new Sharing Settings Metadata API type. When it’s time to activate your territory model, use the enableRemoveTMGroupMembership field to delete the original territory sharing records. Then activate your territory model to complete the migration.