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