SAP Message UCF8003 - The value for char &1 in line item &2 is not equal to fixed value &3 (&4)

Diagnosis
Characteristic &V1& is permanently fixed with the value &V3&, whichmeans that this value must be the same in all document line items thatare broken down by this characteristic. However, in line item &V2& thischaracteristic has a deviating value of &V4&.

System Response
The document has an error and cannot be posted.

Procedure
Check the breakdowns for the item in line item &V2&. If necessary,correct the item.