How To Fix FKKINV_ID_XX_ODN101 - Field values are not unique for: &1, &2, &3, &4

FKKINV_ID_XX_ODN101 - Overview

• Message type: E = Error

• Message class: FKKINV_ID_XX_ODN - ODN Message in Convergent Invoicing

• Message number: 101

• Message text: Field values are not unique for: &1, &2, &3, &4

What causes this issue?

Some countries require special document references or official document
numbers that are derived from an existing official number (the system
behaves in the same way as for external official document numbering).

System Response

Since the relevant field values within the document are not unique, the
system cannot create references or external official document numbers
for the document. The system cancels processing.

How to fix this error?

You must group your documents so that these field values are always
unique.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

FKKINV_ID_XX_ODN101 - Details

• The SAP error message FKKINV_ID_XX_ODN101 indicates that there is a problem with the uniqueness of field values in the context of an invoice or billing document. This error typically arises in the SAP Convergent Charging or SAP Contract Accounts Receivable and Payable (FI-CA) modules when the system expects unique values for certain fields but finds duplicates.
  
  Cause:
  The error message is triggered when the system detects that the combination of values in the specified fields (represented by &1, &2, &3, &4) is not unique. This can happen due to several reasons, including:
  
  Duplicate Entries: There may be multiple records in the database that have the same values for the fields in question.
  Incorrect Data Entry: During data entry or data migration, duplicate records may have been created inadvertently.
  
  Configuration Issues: The system may not be configured correctly to enforce uniqueness for the specified fields.
  Data Consistency Issues: There may be inconsistencies in the data due to