SAP Message VSB406 - Quantity and value of the item must have the same +/- sign

Diagnosis
The IDoc item has different plus/minus signs for the quantity and valuedisplayed.
Quantity:,,&V1&
Value:,,&V2&
An IDoc that does not identify a unique plus/minus sign at item level,is not processed further.

System Response
The verification check ends with this message. Changes can no longer beexecuted online as this is an example of quantity and value fields.

Procedure
Ensure that quantities and values of an item always have the sameplus/minus sign in the EDI subsystem (converter).
These are primarily examples of IDoc fields.

  • E1EDP01-MENGE (item quantity) and

  • E1EDP26-BETRG (net value of item).

  • For other value or amount fields, such as conditions or taxes, the plus
    /minus sign should also be adjusted. These fields are not used directlyin the processing step, however they are used in the monitor fordisplay.
    Item quantity and item net value are used directly in processing withthe plus/minus sign provided by the EDI subsystem (converter).