How To Fix HRHCP00_COLLECTION079 - Combination of time units &1 -> &2 cannot be processed

SAP Error Message - Details

• Message type: E = Error

• Message class: HRHCP00_COLLECTION - Messages About Collecting Personnel Cost Planning Data

• Message number: 079

• Message text: Combination of time units &1 -> &2 cannot be processed

What causes this issue?

The system should convert an amount or a number in relation to time
unit &V1& to time unit &V2&. This combination of time units is not
supported.

System Response

The system does not convert the time unit.

How to fix this error?

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

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 HRHCP00_COLLECTION079 - Combination of time units &1 -> &2 cannot be processed ?

  The SAP error message HRHCP00_COLLECTION079, which states "Combination of time units &1 -> &2 cannot be processed," typically occurs in the context of time management or time evaluation processes in SAP HR (Human Resources) modules. This error indicates that there is an issue with the combination of time units being used in a specific operation, such as time evaluation, payroll processing, or reporting.
  Cause:
  
  Invalid Time Unit Combination: The error usually arises when there is an attempt to process a combination of time units that the system does not recognize or cannot handle. For example, trying to convert or process hours and days together without a proper configuration.
  Configuration Issues: There may be configuration settings in the time management module that do not support the specified combination of time units.
  Data Entry Errors: Incorrect data entry in time records or infotypes can lead to this error, especially if the time units are not aligned with the expected formats or types.
  Custom Development: If there are custom programs or enhancements that manipulate time data, they may not be handling the time units correctly.
  
  Solution:
  
  Check Time Unit Configuration: Review the configuration settings in the SAP system related to time management. Ensure that the time units being used are valid and properly configured in the system.
  Review Time Records: Examine the time records or infotypes for the employee(s) involved. Look for any inconsistencies or incorrect entries that might be causing the issue.
  Consult Documentation: Refer to SAP documentation or notes related to time management and the specific error message for additional guidance on resolving the issue.
  Test with Different Combinations: If possible, test the processing with different combinations of time units to identify which specific combination is causing the error.
  Debugging: If you have access to the development environment, consider debugging the relevant programs or function modules to trace where the error is occurring and why the combination is not being accepted.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. Provide them with detailed information about the error, including the context in which it occurs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as PA30 (Maintain HR Master Data), PT60 (Time Evaluation), and others that may be involved in time management processes.
  SAP Notes: Search for SAP Notes related to HR time management and the specific error message for any patches or updates that may address the issue.
  User Forums: Check SAP community forums or user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the cause of the HRHCP00_COLLECTION079 error and implement a solution to resolve it.