How To Fix AH843 - Internal: Change to time category not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 843

• Message text: Internal: Change to time category not allowed

What causes this issue?

The time category for the steps with the specified partial key has
changed in internal table IOPER.
<DS:DE.CSNO>Schema step during billing</> &V1&
Number of operand &V2&
Operand &V3&
This causes an error during price block adjustment in function module
ISU_PRICE_ZONES_ADJUST.

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?

INCLUDE ISU_SAP OBJECT DOKU ID TX
Specify the partial key in your message.

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 AH843 - Internal: Change to time category not allowed ?

  The SAP error message AH843 ("Internal: Change to time category not allowed") typically occurs in the context of time management or time recording in SAP systems, particularly when dealing with time evaluation or time-related infotypes. This error indicates that there is an attempt to change the time category of a time entry that is not permitted due to the system's internal logic or configuration.
  Causes:
  
  Incorrect Time Category Change: The user may be trying to change a time entry's category (e.g., from "working time" to "absence") in a way that is not allowed by the system.
  Configuration Issues: The configuration settings in the SAP system may not allow for certain changes to be made to time categories.
  Data Consistency: The system may have detected that changing the time category would lead to inconsistencies in the time data or violate business rules.
  Locked Entries: The time entry may be locked for editing due to ongoing processes, such as payroll processing or time evaluation.
  
  Solutions:
  
  Review Time Entry: Check the time entry you are trying to modify. Ensure that the change you are attempting is valid and permissible according to your organization's time management policies.
  Consult Configuration: If you have access, review the configuration settings in the SAP system related to time management. Ensure that the time categories are set up correctly and that the changes you are trying to make are allowed.
  Check for Locks: Verify if the time entry is locked due to ongoing processes. If so, you may need to wait until those processes are completed before making changes.
  Use Correct Transaction: Ensure you are using the correct transaction code for the operation you are trying to perform. Sometimes, using the wrong transaction can lead to unexpected errors.
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting the SAP Help Portal for further assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error. SAP Notes often provide patches or workarounds for known issues.
  Documentation: Review the SAP documentation related to time management and time evaluation to understand the rules governing time categories.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the AH843 error and take appropriate action to resolve it.