There are seven types of update policies defined in the Update Manager.
Enterprise Merge Policy – The enterprise merge policy defines additional processing to perform when two enterprise objects are merged. This policy is defined by the EnterpriseMergePolicy element.
Enterprise Unmerge Policy – The enterprise unmerge policy defines additional processing to perform when an unmerge transaction occurs. This policy is defined by the EnterpriseUnmergePolicy element.
Enterprise Update Policy – The enterprise update policy defines additional processing to perform when a record is updated. This policy is defined by the EnterpriseUpdatePolicy element.
Enterprise Create Policy – The enterprise create policy defines additional processing to perform when a new record is inserted into the master index database. This policy is defined by the EnterpriseCreatePolicy element.
System Merge Policy – The system merge policy defines additional processing to perform when two system objects are merged. This policy is defined by the SystemMergePolicy element.
System Unmerge Policy – The system unmerge policy defines additional processing to perform when system objects are unmerged. This policy is defined by the SystemUnmergePolicy element.
UndoAssumeMatchPolicy – The undo assume match policy defines additional processing to perform when an assumed match transaction is reversed. This policy is defined by the UndoAssumeMatchPolicy element.