How To Fix O4066 - Accumulation exit must be defined for differential invoice.

SAP Error Message - Details

• Message type: E = Error

• Message class: O4 - IS-Oil: MAP message pool

• Message number: 066

• Message text: Accumulation exit must be defined for differential invoice.

What causes this issue?

You have not defined a user exit to accumulate the condition types of
the preceeding invoices.

System Response

The system abends the transaction

How to fix this error?

Maintain an accumulation user exit on the billing type.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message O4066 - Accumulation exit must be defined for differential invoice. ?

  The SAP error message O4066, which states "Accumulation exit must be defined for differential invoice," typically occurs in the context of invoice processing, particularly when dealing with differential invoices in the SAP system. This error indicates that the system requires a specific configuration related to the accumulation exit for the differential invoice process.
  Cause:
  The error arises when:
  
  Missing Configuration: The system does not have a defined accumulation exit for the specific invoice type or scenario you are trying to process. Accumulation exits are used to determine how certain values are accumulated or calculated during invoice processing.
  Incorrect Invoice Type: The invoice type being used may not be compatible with the current configuration settings in the system.
  Custom Development: If there are custom developments or enhancements in the system, they may not be correctly handling the accumulation exit for differential invoices.
  
  Solution:
  To resolve the O4066 error, you can take the following steps:
  
  
  Define Accumulation Exit:
  
  Go to the SAP Customizing Implementation Guide (IMG).
  Navigate to Logistics > Invoice Verification > Incoming Invoice > Define Accumulation Exit.
  Ensure that an appropriate accumulation exit is defined for the differential invoice type you are working with.
  
  
  
  Check Invoice Type:
  
  Verify that the invoice type you are using is correctly set up in the system and is compatible with the defined accumulation exit.
  You can check this in the configuration settings for invoice types.
  
  
  
  Review Custom Code:
  
  If there are any custom developments related to invoice processing, review the code to ensure that it correctly handles the accumulation exit for differential invoices.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for more detailed information on how to configure accumulation exits and their relevance to differential invoices.
  
  
  
  Testing:
  
  After making the necessary changes, perform tests to ensure that the error no longer occurs and that the invoice processing works as expected.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists after checking the configuration and custom code, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Differential Invoice: This type of invoice is used when there is a need to adjust or correct a previously issued invoice, often involving changes in pricing or quantities.
  Accumulation Exit: This is a user-defined routine in SAP that determines how certain values are accumulated during the invoice verification process.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MIRO (Invoice Receipt) and OMR6 (Define Accumulation Exit) for navigating the system.
  
  By following these steps, you should be able to resolve the O4066 error and ensure proper processing of differential invoices in your SAP system.