SAP Message WJ204 - Current line &1 already exists in line &2: duplicated key

Diagnosis
While creating additionals, you have entered data inline &V1& that already appears as a key in line &V2&.
No single combination of sales unit, class type,class and additional may appear more than once in thetable. This combination forms the (primary) key, that must always beunique.

Procedure
Check your entries in the current line for the

  • Sales unit

  • Class type

  • Class

  • Additional

  • Note:
    It is not possible to define more than oneprocedure for affixing an additional
    per combination of additional, sales unit, class type and class.