Work with activities activities
In Federated Audience Composition, you can create compositions using two types of activities:
- Targeting activities let you build one or more targets by defining an audience and splitting or combining these audiences using intersection, union or exclusion operations.
 - Flow control activities are specific to organizing and executing compositions. Their main task is to coordinate the other activities.
 
Targeting activities
- Build audience activity: Define your target population. You can either select an existing audience or use the query modeler to define your own query.
 - Change data source: Change the data source used by your composition.
 - Change dimension: Change the schema, also known as targeting dimension, as you are building your composition.
 - Combine: Perform segmentation on your inbound population. You can use a union, an intersection or an exclusion.
 - Deduplication: Delete duplicates in the result(s) of the inbound activities.
 - Enrichment: Define additional data to process in your composition. With this activity, you can leverage the inbound transition and configure the activity to complete the output transition with additional data.
 - Reconciliation: Define the link between the data in the database and the data in a work table, for example data loaded from an external file.
 - Save audience: Update an existing audience or create a new audience from the population computed upstream in a composition.
 - Split: Segment incoming population into several subsets.
 
Flow control activities
- AND-join: Synchronize multiple execution branches of a composition.
 - End: Graphically mark the end of a composition. This activity has no functional impact and is therefore optional.
 - Fork: Create outbound transitions to start several activities at the same time.
 - Scheduler: Schedule when the composition gets started.
 - Wait: Momentarily pause execution of a part of a composition.
 
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