How To Fix PSSC_TOOLS024 - Unit &1 assigned to frequency type &2 invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: PSSC_TOOLS - Message Class for Periods & Due Date Tools

• Message number: 024

• Message text: Unit &1 assigned to frequency type &2 invalid

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PSSC_TOOLS024 - Unit &1 assigned to frequency type &2 invalid ?

  The SAP error message PSSC_TOOLS024 indicates that there is an issue with the assignment of a unit to a frequency type in the context of SAP's Plant Maintenance or similar modules. This error typically arises when the system encounters an invalid combination of unit and frequency type during operations such as planning, scheduling, or maintenance tasks.
  Cause:
  
  Invalid Unit Assignment: The unit of measure assigned to a frequency type is not valid or does not exist in the system.
  Configuration Issues: There may be a configuration issue in the system where the frequency type is not properly linked to the unit of measure.
  Data Inconsistency: There could be inconsistencies in the master data or configuration settings that lead to this error.
  Custom Development: If there are custom developments or enhancements in the system, they might not be handling the unit and frequency type correctly.
  
  Solution:
  
  Check Unit of Measure: Verify that the unit of measure assigned to the frequency type is valid and exists in the system. You can do this by navigating to the relevant configuration settings in SAP.
  Review Frequency Type Configuration: Go to the configuration settings for frequency types and ensure that the unit of measure is correctly assigned. This can typically be found in the customizing settings under the relevant module (e.g., Plant Maintenance).
  Correct Data Entries: If you find any incorrect entries in the master data or configuration, correct them. This may involve updating the frequency type or the unit of measure.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the configuration of frequency types and units of measure.
  Testing: After making changes, test the functionality to ensure that the error no longer occurs.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SPRO for configuration, IW31/IW32 for work order creation and modification, or MM02 for material master changes.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  User Exits/Enhancements: If there are custom developments, review any user exits or enhancements that might affect the handling of frequency types and units.
  
  By following these steps, you should be able to identify and resolve the issue related to the SAP error message PSSC_TOOLS024.