Diagnosis
The customer has billed a quantity of customer material &V1& that isdifferent from the open quantity due for billing.
The billed quantity from the intermediate document (IDoc) is &V2&
The anticipated quantity due for billing is &V3&
No matter what type of IDoc is created for the self-billing document,the system calculates the quantity due for billing as follows:
For invoices
The quantity to be billed is the quantity of relevant items in thedelivery.
For credit memos (quantity corrections)
The quantity to be billed is the:
Quantity billed in the self-billing document
minus the quantity in the related delivery
minus the quantity in all existing credit memos
For credit and debit memos (for retro-billing)
The quantity to be billed is the quantity of relevant items in theinvoice.

System Response
The system creates a billing document using billed quantity &V2& fromthe IDoc.

Procedure
Inform your customer of the difference so that they can send acredit memo for quantity corrections.