Assigning Fields

You have analyzed the fields and structures, as well as the transfer file and your legacy data. In this step you should assign the fields in the legacy system to the fields in transfer file.

There are two ways to assign the fields to each other:

1. Manual Assignments

   You can use a printout of the interface structure from step 2 to do this.

2. Assignment using a commercial tool (mapping tool)

   You can use a commercial tool to assign the fields in the legacy system and the fields in the target SAP structure to each other and to display them.

   Since the use of commercial mapping tools is linked to license fees and training costs, it is recommended that you use them if you have to convert several interfaces (> 20) to several legacy systems (> 2).

   Note

   All mandatory fields from the online transaction and from the transfer file must be filled. Fields that are not filled contain the NODATA character.