How To Fix FKKINV_ID_XX_ODN011 - Sub-ID of document &1 must be unique

FKKINV_ID_XX_ODN011 - Overview

• Message type: E = Error

• Message class: FKKINV_ID_XX_ODN - ODN Message in Convergent Invoicing

• Message number: 011

• Message text: Sub-ID of document &1 must be unique

What causes this issue?

The document contains line item data from which the system derives
different sub-ID values. This is because the system setting for document
grouping and sub-ID Customizing do not match.

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

System Response

Since the sub-ID must be unique for a document, the system cancels
processing to avoid short dumps during official document numbering.

How to fix this error?

In Convergent Invoicing, post a document that contains consistent line
item data to derive a unique sub-ID value from the Customizing data.

Procedure for System Administrators

You have the following options:
Adjust the document grouping.
Adjust Customizing for the sub-ID. Note that you have to create a new
metadata schema.

Error message extract from SAP system. Copyright SAP SE.

FKKINV_ID_XX_ODN011 - Details

• The SAP error message FKKINV_ID_XX_ODN011 indicates that there is a problem with the uniqueness of the sub-ID of a document in the context of the SAP Convergent Charging or Contract Accounts Receivable and Payable (FI-CA) module. This error typically arises when you are trying to create or process an invoice or document that has a sub-ID that already exists in the system.
  
  Cause:
  The error occurs because:
  
  Duplicate Sub-ID: The sub-ID you are trying to use for the document is already assigned to another document in the system. Each document must have a unique sub-ID to avoid conflicts and ensure data integrity.
  Data Entry Error: There may have been a mistake in data entry, leading to the attempt to reuse an existing sub-ID.
  System Configuration: There might be issues with the configuration of the document types or number ranges that allow for duplicate entries.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Documents:
  
  Use