How To Fix FKKINV015 - External document number &1 logical system &2 is unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: FKKINV - Invoicing in Contract Accounts Receivable and Payable

• Message number: 015

• Message text: External document number &1 logical system &2 is unknown

trados = fi

What causes this issue?

In the interface, for billing document items, tax items, or additional
items there was a reference to a billing document header with
<DS:DE.REFDOCNO_KK>external document number</> in <DS:DE.LOGSYS>logical
system</> . However, no corresponding
billing document header was transferred in the interface.

System Response

The system cannot process the billing document data transferred.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FKKINV015 - External document number &1 logical system &2 is unknown ?

  The SAP error message FKKINV015 indicates that the external document number specified in the system is not recognized or does not exist in the specified logical system. This error typically occurs in the context of contract accounts receivable and payable (FI-CA) when trying to process an invoice or a related document.
  Cause:
  
  Incorrect External Document Number: The external document number provided may be incorrect or mistyped.
  Logical System Configuration: The logical system specified may not be correctly configured or may not have the relevant data.
  Data Not Transferred: The document may not have been transferred to the logical system, or it may have been deleted or archived.
  Integration Issues: There may be issues with the integration between different systems (e.g., between SAP and non-SAP systems) that prevent the document from being recognized.
  
  Solution:
  
  Verify External Document Number: Check the external document number for accuracy. Ensure that it matches the expected format and value.
  Check Logical System Configuration: Ensure that the logical system is correctly set up in the SAP system. You can check this in transaction code BD54 (Maintain Logical Systems).
  Data Consistency: Verify that the document exists in the specified logical system. You can do this by checking the relevant tables (e.g., FKKINV for invoices) or using transaction codes like FBL5N or FBL1N to look for the document.
  Reprocess Data Transfer: If the document should exist but does not, consider reprocessing the data transfer or checking the data transfer logs for errors.
  Consult with Basis Team: If the issue persists, consult with your SAP Basis team to check for any underlying system issues or configuration problems that may be affecting the logical system.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FBL5N (Customer Line Item Display), FBL1N (Vendor Line Item Display), and FKKINV (Invoice Document).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for notes in the SAP Support Portal.
  Documentation: Review SAP documentation related to FI-CA and external document processing for additional context and troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.