How To Fix RSO_RES_HCPR044 - InfoProvider '&1' is not allowed for a UNION under a JOIN node

RSO_RES_HCPR044 - Overview

• Message type: E = Error

• Message class: RSO_RES_HCPR - CompositeProvider

• Message number: 044

• Message text: InfoProvider '&1' is not allowed for a UNION under a JOIN node

Self-Explanatory Message

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RSO_RES_HCPR044 - Details

• The SAP error message RSO_RES_HCPR044 indicates that there is an issue with the configuration of a query or a data model in SAP BW (Business Warehouse) or SAP HANA. Specifically, this error occurs when you attempt to use a UNION operation on InfoProviders that are not compatible under a JOIN node.
  
  Cause:
  The error typically arises due to the following reasons:
  
  
  Incompatible InfoProviders: The InfoProviders you are trying to combine using a UNION operation may not have the same structure or characteristics. For example, they might have different key figures, characteristics, or data types.
  
  
  Incorrect Query Design: The query design may not adhere to the rules for combining InfoProviders. In SAP BW, certain InfoProviders can only be used in specific contexts, and using them in a UNION under a JOIN node may violate these rules.
  
  
  Data Model Configuration: The underlying data model may not be set up correctly, leading to conflicts when trying to perform