How To Fix RSDD_LM005 - Join type &1 of provider '&2' is unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDD_LM - Messages for Lean Modeler (API and RSLIMO)

• Message number: 005

• Message text: Join type &1 of provider '&2' is unknown

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDD_LM005 - Join type &1 of provider '&2' is unknown ?

  The SAP error message RSDD_LM005, which states "Join type &1 of provider '&2' is unknown," typically occurs in the context of SAP BW (Business Warehouse) when there is an issue with the join type defined in a query or data model. This error indicates that the system has encountered a join type that it does not recognize or that is not properly defined.
  Causes:
  
  Invalid Join Type: The join type specified in the data provider (e.g., InfoProvider, CompositeProvider) is not valid or is not recognized by the system.
  Configuration Issues: There may be a misconfiguration in the data model or the query definition that leads to the system not being able to interpret the join type correctly.
  Version Compatibility: The error may arise if there are compatibility issues between different versions of SAP BW or if certain features are not supported in the current version.
  Corrupted Metadata: The metadata for the InfoProvider or query may be corrupted, leading to the system being unable to recognize the join type.
  
  Solutions:
  
  Check Join Type: Review the join type specified in the data provider or query definition. Ensure that it is a valid join type supported by SAP BW (e.g., INNER JOIN, LEFT OUTER JOIN).
  Reconfigure the Data Model: If the join type is incorrect, reconfigure the data model or query to use a valid join type. This may involve editing the CompositeProvider or InfoProvider settings.
  Update SAP BW: Ensure that your SAP BW system is up to date with the latest patches and updates. Sometimes, issues are resolved in newer versions or patches.
  Check for Corruption: If you suspect metadata corruption, you may need to regenerate the metadata for the affected InfoProvider or query. This can often be done through the SAP BW administration tools.
  Consult Documentation: Refer to the SAP Help Portal or relevant documentation for your version of SAP BW to understand the supported join types and configurations.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. They may provide insights specific to your system configuration.
  
  Related Information:
  
  SAP BW Documentation: Check the official SAP documentation for details on join types and how to configure them in BW.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench) for managing InfoProviders and queries.
  
  By following these steps, you should be able to identify and resolve the cause of the RSDD_LM005 error in your SAP BW environment.