How To Fix AJ678 - Error changing from rate category &1 to rate category &2

AJ678 - Overview

• Message type: E = Error

• Message class: AJ - Billing program

• Message number: 678

• Message text: Error changing from rate category &1 to rate category &2

What causes this issue?

On &v3& you changed rate category &v1& that is billed with dynamic
period control (DPC) to rate category &v2& that is billed without DPC.
This change is only permitted at the start of billing period &v4&.

System Response

Processing is terminated.

How to fix this error?

Change the rate category at the start of the billing period.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

AJ678 - Details

• The SAP error message AJ678 typically occurs in the context of changing the rate category for a particular object, such as a cost center or internal order. This error indicates that there is an issue with the transition from one rate category to another, which can be due to various reasons.
  
  Cause:
  
  Inconsistent Data: The data associated with the rate categories may not be consistent or valid for the change you are trying to make.
  Locked Objects: The object you are trying to change may be locked by another user or process, preventing the change.
  
  Configuration Issues: There may be configuration settings in the system that do not allow for the change between the specified rate categories.
  Dependencies: There may be dependencies or relationships with other objects that prevent the change.
  Period Restrictions: The change might be attempted in a closed period or a period that does not allow for such changes.
  
  
  Solution:
  
  Check Data Consistency: Review the