How To Fix RSMD_UC_MESSAGES026 - Unused key entries (see details; max. 25000)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSMD_UC_MESSAGES -

• Message number: 026

• Message text: Unused key entries (see details; max. 25000)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSMD_UC_MESSAGES026 - Unused key entries (see details; max. 25000) ?

  The SAP error message RSMD_UC_MESSAGES026 indicates that there are unused key entries in the data warehouse or InfoProvider, specifically in the context of SAP BW (Business Warehouse) or SAP BW/4HANA. This message typically arises during the process of data loading or when performing data modeling activities.
  Cause:
  The error occurs when there are key entries in the data model that are not being utilized or referenced in any active data records. This can happen due to various reasons, such as:
  
  Data Model Changes: Changes in the data model that render certain key entries obsolete.
  Data Deletion: Deletion of data records that were previously using those key entries.
  Inconsistent Data: Data inconsistencies or errors during data loading processes.
  Configuration Issues: Incorrect configuration of InfoObjects or InfoProviders.
  
  Solution:
  To resolve the RSMD_UC_MESSAGES026 error, you can follow these steps:
  
  
  Identify Unused Key Entries:
  
  Use transaction codes like RSA1 (Data Warehousing Workbench) to analyze the InfoProvider and identify which key entries are unused.
  Check the details provided in the error message to see which specific key entries are causing the issue.
  
  
  
  Delete Unused Key Entries:
  
  If the unused key entries are confirmed to be obsolete, you can delete them from the InfoProvider or InfoObject.
  This can typically be done through the Data Warehousing Workbench or by using specific transaction codes related to InfoObject maintenance.
  
  
  
  Reprocess Data Loads:
  
  After cleaning up the unused key entries, reprocess the data loads to ensure that the data model is consistent and that the error does not reoccur.
  
  
  
  Check Data Consistency:
  
  Run consistency checks on the data model to ensure that there are no other inconsistencies that could lead to similar issues in the future.
  
  
  
  Review Data Loading Processes:
  
  Review the data loading processes to ensure that they are correctly configured and that they do not introduce unused key entries in the future.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or support notes related to this error for additional guidance and best practices.
  
  
  
  Related Information:
  
  Transaction Codes: RSA1 (Data Warehousing Workbench), RSMO (Monitor Data Loads), RSPC (Process Chain Maintenance).
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error.
  Data Modeling Best Practices: Familiarize yourself with best practices for data modeling in SAP BW to minimize the occurrence of unused key entries.
  
  By following these steps, you should be able to resolve the RSMD_UC_MESSAGES026 error and maintain a clean and efficient data model in your SAP BW environment.