The response shown in the Field Mapping tab shows the hierarchical structure of the data that comes from the source.

When you select fields in the Response area, the fields appear in the Output Fields area in a relational structure with generated primary keys and foreign keys. For example, in the Response Fields area you select First_Name and Last_Name, and then you select Email_Address, which is located under a different parent in the hierarchy. In the Output Fields area, the structure is relational with assigned primary and foreign keys, as shown in the following image:

Consider cardinality when you map response fields to the relational structure. Cardinality imposes constraints on the number of times a field or group can occur at a specific point in the XML structure. A cardinality of 0-many means the field or group can have zero to many occurrences. A cardinality of 1-1 means a field or group is required and can only occur once.

If you map a field with 0-1 or 1-1 cardinality, the first parent node that has 0 to more than 1 cardinality is also mapped. If a parent group with 0 to more than 1 cardinality does not exist, the system creates a group. For example, if you map Email_Comment, which has cardinality of 0-1, the Email_Address_Data group, which has cardinality of 0-many, is automatically mapped.