How To Fix FKKINV421 - Invoicing document &1 is not a preliminary invoice

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 421

• Message text: Invoicing document &1 is not a preliminary invoice

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 FKKINV421 - Invoicing document &1 is not a preliminary invoice ?

  The SAP error message FKKINV421 indicates that the invoicing document you are trying to process is not recognized as a preliminary invoice. This error typically occurs in the context of the SAP Contract Accounts Receivable and Payable (FI-CA) module, which is used for managing customer accounts and invoicing.
  Cause:
  The error can arise due to several reasons:
  
  Document Type: The document you are trying to process may not be of the type that allows for preliminary invoicing. Preliminary invoices are usually created for specific document types that support this functionality.
  Document Status: The invoicing document may have already been finalized or posted, making it no longer eligible for preliminary invoicing.
  Configuration Issues: There may be configuration settings in the system that do not allow the document to be treated as a preliminary invoice.
  Incorrect Document Reference: The document number you are trying to reference may be incorrect or does not exist in the system.
  
  Solution:
  To resolve the FKKINV421 error, you can take the following steps:
  
  
  Check Document Type: Verify that the document type of the invoicing document is set up to allow preliminary invoices. You can do this by checking the configuration in the SAP system.
  
  
  Review Document Status: Ensure that the document you are trying to process is still in a preliminary state and has not been finalized or posted. If it has been posted, you may need to reverse or adjust the document.
  
  
  Configuration Review: If you have access to the configuration settings, check the settings for the invoicing document types in the FI-CA module to ensure that preliminary invoicing is enabled for the relevant document types.
  
  
  Correct Document Reference: Double-check the document number you are using to ensure it is correct and exists in the system. You can search for the document in the relevant transaction codes (e.g., FPL9, FPL1) to confirm its status.
  
  
  Consult Documentation: Review SAP documentation or help resources for additional insights on the specific error message and its context.
  
  
  Contact Support: If the issue persists after checking the above points, 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 FPL1 (Create Preliminary Invoice), FPL9 (Display Preliminary Invoice), and others related to invoicing in FI-CA.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorization: Ensure that you have the necessary authorizations to create or modify invoicing documents in the system.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.