How To Fix AJ641 - Invoicing is not possible for contract account &1

SAP Error Message - Details

• Message type: E = Error

• Message class: AJ - Billing program

• Message number: 641

• Message text: Invoicing is not possible for contract account &1

What causes this issue?

Invoicing was not started because there are no invoicing orders for
contract account &v1&. First execute a successful billing, then restart
invoicing.

System Response

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

How to fix this error?

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 AJ641 - Invoicing is not possible for contract account &1 ?

  The SAP error message AJ641, which states "Invoicing is not possible for contract account &1," typically occurs in the context of billing and invoicing processes within the SAP system, particularly in the area of contract accounts receivable and payable (FI-CA). This error indicates that there is an issue preventing the invoicing process for the specified contract account.
  Causes of Error AJ641
  
  
  Contract Account Status: The contract account may be in a status that does not allow invoicing. For example, it could be blocked or inactive.
  
  
  Missing Master Data: Required master data for the contract account may be missing or incomplete, such as customer information or billing details.
  
  
  Open Items: There may be open items or unresolved issues in the contract account that need to be addressed before invoicing can proceed.
  
  
  Configuration Issues: There may be configuration settings in the SAP system that restrict invoicing for certain types of contract accounts.
  
  
  Billing Document Issues: There may be issues with the billing document itself, such as missing or incorrect data.
  
  
  Solutions to Error AJ641
  
  
  Check Contract Account Status: Verify the status of the contract account in question. If it is blocked or inactive, you may need to change its status to allow invoicing.
  
  
  Review Master Data: Ensure that all necessary master data for the contract account is complete and accurate. This includes checking customer details, payment terms, and billing information.
  
  
  Resolve Open Items: Investigate any open items associated with the contract account. Clear any discrepancies or issues that may be preventing invoicing.
  
  
  Configuration Review: Consult with your SAP configuration team to review the settings related to contract accounts and invoicing. Ensure that the configuration allows for invoicing as intended.
  
  
  Check Billing Document: If applicable, review the billing document for any errors or missing information. Correct any issues found.
  
  
  Consult Documentation: Refer to SAP documentation or support notes related to error AJ641 for additional guidance and troubleshooting steps.
  
  
  Related Information
  
  
  Transaction Codes: You may need to use transaction codes such as FBL1N (Vendor Line Item Display), FBL5N (Customer Line Item Display), or F-28 (Post Incoming Payments) to investigate the contract account and its transactions.
  
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error message.
  
  
  User Authorization: Ensure that the user attempting to perform the invoicing has the necessary authorizations to do so.
  
  
  If the issue persists after following these steps, it may be beneficial to engage with your SAP support team or consult SAP's support portal for further assistance.