How To Fix RS_B4HANA_RC093 - Current "Additional Grouping Before Join" setting is not supported.

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_B4HANA_RC -

• Message number: 093

• Message text: Current "Additional Grouping Before Join" setting is not supported.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RS_B4HANA_RC093 - Current "Additional Grouping Before Join" setting is not supported. ?

  The SAP error message RS_B4HANA_RC093 indicates that the "Additional Grouping Before Join" setting is not supported in the context of your current query or data model. This error typically arises when using SAP BW/4HANA or SAP BW on HANA, particularly when working with CompositeProviders or queries that involve complex joins and aggregations.
  Cause:
  The error is primarily caused by the following factors:
  
  
  Incompatibility with HANA: The "Additional Grouping Before Join" setting is not compatible with the HANA database's processing capabilities. HANA has specific optimization techniques that may not support certain types of pre-aggregation or grouping before performing joins.
  
  
  Query Design: The way the query is designed may involve aggregations that are not supported in the context of the data model or the underlying database.
  
  
  Data Model Limitations: The data model being used may have limitations that prevent the use of this setting, especially if it involves complex joins or multiple data sources.
  
  
  Solution:
  To resolve the error, consider the following steps:
  
  
  Review Query Settings: Check the query settings in the Query Designer. If "Additional Grouping Before Join" is enabled, try disabling it to see if the query runs successfully without it.
  
  
  Simplify the Query: If possible, simplify the query by reducing the number of joins or aggregations. This may involve restructuring the data model or using different data sources.
  
  
  Use HANA-Optimized Models: If you are using CompositeProviders, ensure that they are optimized for HANA. This may involve using HANA views or other optimized data models that align with HANA's processing capabilities.
  
  
  Check for Updates: Ensure that your SAP BW/4HANA system is up to date with the latest patches and updates, as newer versions may have improved support for certain features.
  
  
  Consult Documentation: Refer to the official SAP documentation for BW/4HANA and HANA to understand the limitations and best practices for query design and data modeling.
  
  
  Seek Expert Help: If the issue persists, consider reaching out to SAP support or consulting with an SAP BW/4HANA expert who can provide tailored advice based on your specific scenario.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on query design in BW/4HANA.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions.
  Training and Documentation: Consider training resources or documentation on best practices for designing queries in SAP BW/4HANA, especially regarding the use of joins and aggregations.
  
  By following these steps, you should be able to address the RS_B4HANA_RC093 error and optimize your queries for better performance in SAP BW/4HANA.