How To Fix RS_DB_DB2126 - Table &1 has an obsolete layout and is being refreshed in accelerator &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_DB_DB2 - Messages for DB2-z/OS Implementation

• Message number: 126

• Message text: Table &1 has an obsolete layout and is being refreshed in accelerator &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RS_DB_DB2126 - Table &1 has an obsolete layout and is being refreshed in accelerator &2 ?

  The SAP error message RS_DB_DB2126 indicates that a table in the SAP system has an obsolete layout and is being refreshed in the specified accelerator. This typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA environments where data models and structures can change over time.
  Cause:
  
  Obsolete Layout: The table layout has become outdated due to changes in the underlying data model, such as changes in the InfoObject definitions, data sources, or transformations.
  Data Model Changes: Changes in the data model, such as adding or removing fields, can lead to the layout being marked as obsolete.
  Data Refresh: The error often occurs during a data refresh operation when the system attempts to load data into an accelerator (like SAP HANA) that has an outdated structure.
  
  Solution:
  To resolve the RS_DB_DB2126 error, you can follow these steps:
  
  
  Check the Table Layout:
  
  Use transaction code RSA1 to access the Data Warehousing Workbench.
  Navigate to the relevant InfoProvider (e.g., InfoCube, DataStore Object) and check the layout of the table.
  
  
  
  Refresh the Table Layout:
  
  In the Data Warehousing Workbench, you can refresh the layout of the table. This is typically done by:
  
  Right-clicking on the InfoProvider and selecting "Manage" or "Activate."
  Following the prompts to refresh or activate the layout.
  
  
  
  
  
  Rebuild the Accelerator:
  
  If the table is part of an accelerator (like SAP HANA), you may need to rebuild the accelerator. This can be done through the relevant transaction or administration tools in SAP HANA.
  
  
  
  Check for Data Model Changes:
  
  Review any recent changes made to the data model that could have affected the table layout. Ensure that all changes are properly reflected in the InfoProvider.
  
  
  
  Run Data Load:
  
  After refreshing the layout, attempt to run the data load again to see if the error persists.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), RSD1 (InfoObject Maintenance), and RSPC (Process Chain Maintenance).
  SAP Documentation: Review SAP documentation related to data modeling, InfoProviders, and accelerators for best practices and troubleshooting tips.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the RS_DB_DB2126 error and ensure that your data structures are up to date.