Diagnosis
You have entered a unit of measure for a component or variable-sizeitem which is not defined.

System Response

• The unit of measure entered is checked against settings in the IMG
(Global settings -> Unit of measurement). This table contains all theunits of measure that are supported in the system.

• If the item is a material, the system also checks whether the entered
unit of measure corresponds to the unit of issue or base unit ofmeasure in the material master.

• For variable-size items, the item entry screen and the overview also
allow the you to enter the unit "piece" (Var-size item unit).

Procedure
Check your entries.
Delete your entry for the unit of measure.
If you have entered a material as an item, the system enters the unitof issue from the material master, if there is one. If not, the baseunit of measure from the material master appears.
If no material is entered in the item, the system takes the unit"piece" as a default.