How To Fix FKKINV_ID_XX_ODN002 - Internal error occurred; not possible to determine an XBLNR value

FKKINV_ID_XX_ODN002 - Overview

• Message type: E = Error

• Message class: FKKINV_ID_XX_ODN - ODN Message in Convergent Invoicing

• Message number: 002

• Message text: Internal error occurred; not possible to determine an XBLNR value

What causes this issue?

To create an external official document number (<AB>XBLNR</> value), the
system requires references to previously posted documents. These
references are created for the current document before the <AB>XBLNR</>
value is generated. They can be created only if the data of the related
documents is consistent.
The data of posted documents that is required to identify previous
documents and create the document references is inconsistent.

System Response

The system cancels processing to avoid further data inconsistencies.

How to fix this error?

Check that the document data of the related documents is consistent for
your business process.

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_ODN002 - Details

• The SAP error message FKKINV_ID_XX_ODN002 indicates that an internal error has occurred, specifically related to the inability to determine an XBLNR (reference number) value. This error typically arises in the context of the SAP Convergent Invoicing (CI) or Contract Accounts Receivable and Payable (FI-CA) modules.
  Causes:
  
  Missing Data: The XBLNR value may not be populated in the relevant document or transaction. This could be due to missing or incomplete data during the invoice creation or processing.
  
  Configuration Issues: There may be configuration settings in the system that are not correctly set up, leading to the inability to derive the XBLNR value.
  Custom Code: If there are custom enhancements or modifications in the system, they might interfere with the standard processing logic, causing this error.
  Data Inconsistencies: There could be inconsistencies in the data stored in the database, such as missing entries in related tables.
  
  Solutions:
  
  Check Document Data: Review the document that triggered the error to ensure