You need to include an SAP/ALE IDoc Prepare transformation in an inbound IDoc mapping. The transformation receives data from upstream transformations in the mapping and interprets the segment data.

Each SAP/ALE IDoc Prepare transformation can only interpret data for a particular IDoc type. You can include multiple SAP/ALE IDoc Prepare transformations to represent multiple IDoc types in a single mapping.

After you create an SAP/ALE IDoc Prepare transformation, you can edit the transformation to set values for control record segments and to change the data segments you want to include in the transformation.

When you edit the transformation, you can also view details about the IDoc type and segments. To view details, double-click the title bar of the transformation and select the IDoc Display tab.