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