How To Fix RSDD_LM081 - Key figures cannot be joined

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 081

• Message text: Key figures cannot be joined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDD_LM081 - Key figures cannot be joined ?

  The SAP error message RSDD_LM081, which states "Key figures cannot be joined," typically occurs in the context of SAP BW (Business Warehouse) when there is an attempt to join key figures from different InfoProviders or when the key figures are not compatible for joining. This can happen in various scenarios, such as when creating queries in BEx Query Designer or when working with CompositeProviders.
  Causes:
  
  Incompatible Key Figures: The key figures being joined may have different data types or characteristics that make them incompatible.
  Different Aggregation Levels: The key figures may be aggregated at different levels, which can prevent them from being joined.
  Different Units of Measure: If the key figures are measured in different units (e.g., one in currency and another in quantity), they cannot be joined directly.
  Different InfoProviders: Attempting to join key figures from different InfoProviders that do not have a common characteristic for joining.
  Missing Characteristics: If the key figures do not share common characteristics that are required for the join operation.
  
  Solutions:
  
  Check Compatibility: Ensure that the key figures you are trying to join are compatible in terms of data type, aggregation level, and units of measure.
  Use Calculated Key Figures: If necessary, create calculated key figures that convert or aggregate the data to a common format before attempting to join them.
  Review InfoProviders: If the key figures come from different InfoProviders, consider using a CompositeProvider or a MultiProvider that allows for the joining of data from multiple sources.
  Adjust Query Design: In BEx Query Designer, ensure that the query is designed to include only compatible key figures and that the necessary characteristics are included in the query.
  Data Modeling: Review the data model to ensure that the key figures are defined correctly and that they can be joined logically.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or fixes related to this error.
  Documentation: Refer to SAP BW documentation for best practices on working with key figures and InfoProviders.
  Community Forums: Engage with SAP community forums or support channels for additional help and shared experiences from other users who may have encountered the same issue.
  
  By addressing the underlying causes and following the suggested solutions, you should be able to resolve the RSDD_LM081 error and successfully join the key figures in your SAP BW environment.