How To Fix AJ449 - It is not possible to combine billing in advance and period-end billing

SAP Error Message - Details

• Message type: E = Error

• Message class: AJ - Billing program

• Message number: 449

• Message text: It is not possible to combine billing in advance and period-end billing

What causes this issue?

You cannot combine the billing procedures "Billing in advance" and
<DS:TX.ISU_PERIOD_END_BILLING>period-end billing</>.

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?

Choose one of the two billing procedures.

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 AJ449 - It is not possible to combine billing in advance and period-end billing ?

  The SAP error message AJ449 indicates that there is a conflict between billing types in a contract or billing document. Specifically, it states that it is not possible to combine billing in advance (also known as advance billing) with period-end billing. This typically occurs in scenarios where a contract or billing arrangement is set up to use different billing methods that are incompatible with each other.
  Cause:
  
  Billing Type Configuration: The billing types configured in the system may not allow for the combination of advance billing and period-end billing. Each billing type has specific settings that dictate how and when billing occurs.
  Contract Settings: The contract or agreement may have been set up to use one billing method, but the system is trying to apply another method that conflicts with it.
  Billing Plan: The billing plan associated with the contract may be set to a specific billing type that does not support the combination of advance and period-end billing.
  
  Solution:
  
  Review Billing Types: Check the billing types configured in the system. Ensure that the billing types used in the contract or billing document are compatible. You may need to adjust the billing type settings to allow for the desired billing method.
  Adjust Contract Settings: If the contract is set up for advance billing, ensure that all related billing documents and processes are aligned with this method. If period-end billing is required, consider changing the contract settings accordingly.
  Modify Billing Plan: If a billing plan is being used, review its configuration to ensure it supports the desired billing methods. You may need to create a new billing plan that accommodates both advance and period-end billing if necessary.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on billing types and their configurations. This can provide insights into how to properly set up billing methods.
  Contact SAP Support: If the issue persists after reviewing the configurations, consider reaching out to SAP support for assistance. They can provide more detailed troubleshooting based on your specific system setup.
  
  Related Information:
  
  Billing Types: Familiarize yourself with the different billing types available in SAP and their characteristics. Common billing types include:
  
  F2: Invoice
  F1: Pro forma invoice
  F3: Credit memo
  F4: Debit memo
  
  
  Billing Plans: Understand the different billing plans (e.g., periodic billing, milestone billing) and how they interact with billing types.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on billing configurations.
  
  By addressing the configuration of billing types and ensuring compatibility, you should be able to resolve the AJ449 error and proceed with the billing process.