How To Fix 3G126 - Cluster CU could not be read for personnel number &1

SAP Error Message - Details

• Message type: E = Error

• Message class: 3G - Payroll: International

• Message number: 126

• Message text: Cluster CU could not be read for personnel number &1

What causes this issue?

No cluster CU exists for the personnel number &V1&.

System Response

The personnel number &V1& was not processed.

How to fix this error?

Start the report RPUDIR00 for the personnel number and then run this
report again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 3G126 - Cluster CU could not be read for personnel number &1 ?

  The SAP error message 3G126 indicates that the system is unable to read the cluster CU (Cluster for Infotype data) for a specific personnel number. This error typically occurs in the context of HR (Human Resources) data processing, particularly when dealing with infotypes that are stored in cluster tables.
  Cause:
  The error can be caused by several factors, including:
  
  Data Corruption: The cluster data for the specified personnel number may be corrupted or missing.
  Authorization Issues: The user may not have the necessary authorizations to access the cluster data for the personnel number.
  Technical Issues: There may be issues with the database or the underlying infrastructure that prevent the system from accessing the required data.
  Incorrect Personnel Number: The personnel number provided may be incorrect or does not exist in the system.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Personnel Number: Verify that the personnel number is correct and exists in the system. You can do this by using transaction codes like PA20 (Display HR Master Data) or PA30 (Maintain HR Master Data).
  
  
  Check Data Consistency: Use transaction code PU03 to check the consistency of the cluster data. This transaction can help identify any inconsistencies or corruption in the data.
  
  
  Authorization Check: Ensure that the user has the necessary authorizations to access the HR data for the specified personnel number. You may need to consult with your SAP security team.
  
  
  Database Check: If the issue persists, check the database for any inconsistencies or errors. You may need to involve your database administrator to perform a deeper analysis.
  
  
  Rebuild Cluster Data: If the cluster data is indeed corrupted, you may need to rebuild it. This can be done using specific SAP programs or transactions designed for this purpose, but it should be done with caution and typically under the guidance of SAP support or a qualified consultant.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that can resolve the issue.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as PA20, PA30, PU03, and SE38 (to run reports).
  SAP Support: If the issue cannot be resolved internally, consider reaching out to SAP Support for assistance.
  Documentation: Review SAP documentation related to HR data management and cluster tables for a better understanding of how data is stored and accessed.
  
  By following these steps, you should be able to diagnose and resolve the error message 3G126 effectively.