You can add Lookup transformations between the source and a mapplet.

You can add Expression transformations between the source and a mapplet, and between a mapplet and the target.

When you add a mapplet to a

synchronization

task, the

synchronization

task wizard removes existing field mappings. The

synchronization

task wizard doesn't remove existing field mappings if you add a passive mapplet between the source and target.

When you use an active mapplet in a

synchronization

task that includes a saved query, the

synchronization

task ignores the configured target option for the task and inserts data to the target.

Data Integration

retains PowerCenter session-level overrides to the mapping.