How To Fix FKKINV105 - Reference document type &1 is unknown

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 105

• Message text: Reference document type &1 is unknown

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FKKINV105 - Reference document type &1 is unknown ?

  The SAP error message FKKINV105 indicates that the reference document type specified in the transaction is unknown or not recognized by the 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 Document Type: The document type specified in the transaction does not exist in the system or is not configured properly.
  Configuration Issues: The document type may not be assigned to the relevant application area or may not be activated.
  Data Entry Error: There may be a typographical error in the document type field when entering data.
  Missing Customization: If the system has been customized, the necessary settings for the document type may not have been implemented.
  
  Solution:
  
  Check Document Type: Verify that the document type specified in the transaction is correct. You can do this by checking the configuration in the SAP system.
  Configuration Settings:
  
  Go to the configuration settings for document types in the SAP system (Transaction code: SPRO).
  Navigate to Financial Accounting (New) > Accounts Receivable and Accounts Payable > Document Entry > Define Document Types.
  Ensure that the document type in question is defined and properly configured.
  
  
  Review Customization: If the system has been customized, ensure that all necessary settings for the document type are in place.
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the document type and its usage.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FBL1N (Vendor Line Item Display), FBL3N (G/L Account Line Item Display), and FBL5N (Customer Line Item Display) to check related documents.
  SAP Notes: Search for SAP Notes related to FKKINV105 for any known issues or patches that may address the problem.
  User Authorization: Ensure that the user has the necessary authorizations to access and process the document types in question.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.