Mapping list-based parameters

In the following example for mapping output parameters, we show you how list-like output parameters can be mapped. A list-type parameter is comparable to a structure parameter, but contains its data elements in the form of a list. List-type parameters were designed for mapping input or output tables.

The BAPI_EMPLOYEE_GETDATA function module is used as an example. The function module reads HR master data and writes the results to various output tables.
The aim of this scenario is to define a list-type parameter that contains the elements EMPLOYEE_ID, LASTNAME_M and FSTNAME_M and to map the corresponding values of the output table PERSONAL_DATA to these list elements.

First create an operation that calls the function module BAPI_EMPLOYEE_GETDATA and return to the overview page. Call the menu option Custom Data Types and click on New in the following dialog box to create a new data type with the name Personal. This data type should contain the elements EMPLOYEE_ID, LASTNAME_M, and FSTNAME_M.

The next step is to define your list-type output parameter. To do this, open Parameters in the overview screen and click on New. Name the new parameter as PersonalData and select ListofPersonal as data type. Finish the entries with OK. The list-type output parameter is now created.

Then call the activity dialog to perform the mapping. Scroll to the output table PERSONAL_DATA and select the list-type parameter PersonalData from the dropdown list in the mapping field. Click the button on the right with the three dots to call up the Mapping Expression Settings.

You can now use the dropdown list under Mapping to select the listed table fields and assign them to the corresponding elements of the list-type parameter.

Also try the Automap function. If the elements have the same names, they can be assigned automatically. This is not the case in our example for the list element EMPLOYEE_ID. In the output table, the field is PERNO and must therefore be assigned manually.

Confirm your entries with OK. This concludes the mapping in this example.