Hypertext: Object Class - Class to which a document belongs.
Document Name
WLF_VC_IDOC_FLDS
Use
In this step, you can specify customizing to enable editing of IDocs using the new IDoc editor. If no customizing is specified for an IDoc, the editor can be used only to display IDoc data. Therefore, if IDoc data has to be changed or an optimization of the output is requested, customizing should be provided. You can assign a maintenance structure to the combination of Message Type, Segment Type, and Enhancement Structure that is then used by the list maintenance. In addition, a check group can be assigned to enable an input check. Output can be optimized by choosing one of four output positions. You can choose to open all fields for editing, or alternatively specify the fields individually.
Hierarchy 
SAP_APPL (Software Component) Logistics and Accounting
LO-AB (Application Component) Agency Business (Global Trade)
WLF_IDOC_PROCESSING (Package) IDoc Processing
IMG Activity 
Document 
History 
