Wage Type Tables in the Interface Format 
Definition
A Human Resources (HR) table can be treated as a wage type table in the interface format if the table contains at least one field with the LGART field name.
Use
The Interface Toolbox processes wage types and the accompanying wage type tables in the SAP System separately in the interface format.
Table Types
If there is a field in the table with the name LGART, then one of the following two table types can be set for this table:
The system treats the tables in the interface format as regular tables (for example, WPBP (Work Center/Basic Pay)).
The system treats the tables in the interface format as wage type tables (for example, RT (Results Table)).
Assign Table Type
The Restrictions function in the interface format allows you to assign one of the two table types to a table containing at least one field with the name LGART. If you select one of the special restrictions for wage types using the
Restrictions function, then the Toolbox will define this table as a wage type table.
The Results Table (RT) table object is automatically defined as a wage type table by the Interface Toolbox.
Other table objects are considered to be regular tables.
See also:
Wage Type Selection in the Interface Format