How To Fix UJA_EXCEPTION020 - Invalid reference dimension type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: UJA_EXCEPTION - BPC: Admin exception message class

• Message number: 020

• Message text: Invalid reference dimension type &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UJA_EXCEPTION020 - Invalid reference dimension type &1 ?

  The SAP error message UJA_EXCEPTION020 with the description "Invalid reference dimension type &1" typically occurs in the context of SAP BW (Business Warehouse) or SAP BW/4HANA when there is an issue with the dimension types being used in a data model or a query.
  Cause:
  This error usually arises due to one of the following reasons:
  
  
  Incorrect Dimension Type: The dimension type specified in the query or data model does not match the expected type. For example, if a characteristic is expected to be a key figure but is defined as a characteristic, this error may occur.
  
  
  Modeling Issues: There may be inconsistencies in the data model, such as incorrect relationships between dimensions or fact tables.
  
  
  Data Source Configuration: The data source may not be properly configured, leading to mismatches in the expected dimension types.
  
  
  Transport Issues: If the data model or query was transported from one system to another, there may be discrepancies in the dimension definitions between the source and target systems.
  
  
  Solution:
  To resolve the UJA_EXCEPTION020 error, you can take the following steps:
  
  
  Check Dimension Definitions: Review the definitions of the dimensions involved in the query or data model. Ensure that the types of dimensions are correctly defined and match the expected types.
  
  
  Validate Data Model: Use the SAP BW modeling tools to validate the data model. Look for any inconsistencies or errors in the relationships between dimensions and fact tables.
  
  
  Review Query Design: If the error occurs in a query, check the query design for any incorrect references to dimensions. Ensure that all dimensions used in the query are valid and correctly defined.
  
  
  Check Data Source: Verify the configuration of the data source. Ensure that it is correctly set up and that all necessary dimensions are included.
  
  
  Transport Consistency: If the issue arose after a transport, check the transport logs for any errors. Ensure that all necessary objects were transported correctly and that there are no missing dependencies.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of SAP BW you are using. There may be specific guidelines or patches available for your version.
  
  
  Seek Help from SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including the context in which it occurs.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review the SAP BW documentation for best practices in modeling and query design to avoid similar issues in the future.
  
  By following these steps, you should be able to identify and resolve the cause of the UJA_EXCEPTION020 error in your SAP BW environment.