Transfer Cart Outbound Create and Append Process Workflow
The Transfer Cart Outbound Create and Append Process workflow is shown in the following diagram.

As shown in this diagram, the following events happen in this order when this workflow is called:
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The workflow creates the child hierarchy. If no business component reference is provided (empty Customer Account Data, for instance), it instantiates an empty instance of the child.
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The workflow appends the child instance to the parent object (usually this is the shopping cart object). If a flag is set, it can create an empty parent and append this child to it.