SAP Message >R020 - Billing document &1 - Customer line item not available

Diagnosis
System error when clearing the down payments against thereceivable.
Reading of accounting document customer item for SD billing documentV1 unsuccessful.
No item found for the following keys
V2
V3
V4

Procedure
INCLUDE FICA_NA_INFOADMIN!! OBJECT DOKU ID TX

Procedure for System Administration
INCLUDE FICA_NA_OSS_1 OBJECT DOKU ID TX