How To Fix RSL_UI058 - CompositeProvider field &1 is already mapped to provider field &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RSL_UI -

• Message number: 058

• Message text: CompositeProvider field &1 is already mapped to provider field &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSL_UI058 - CompositeProvider field &1 is already mapped to provider field &2 ?

  The SAP error message RSL_UI058 indicates that there is a mapping conflict in a CompositeProvider. Specifically, it means that a field (denoted as &1) is already mapped to another field (denoted as &2) within the same CompositeProvider. This typically occurs when you are trying to map fields from different data sources in a way that violates the rules of field mapping in SAP BW (Business Warehouse) or SAP HANA.
  Cause:
  
  Duplicate Mapping: The field you are trying to map is already mapped to another field in the CompositeProvider.
  Incorrect Configuration: There may be an error in the configuration of the CompositeProvider where fields are not correctly defined or are overlapping.
  Data Source Changes: Changes in the underlying data sources may have led to conflicts in field mappings.
  
  Solution:
  
  Review Field Mappings: Go to the CompositeProvider definition and review the field mappings. Ensure that each field is uniquely mapped and that there are no duplicates.
  Remove Duplicate Mappings: If you find that the field is indeed mapped to another field, you will need to either remove the duplicate mapping or change the mapping to a different field.
  Check Data Sources: Verify the data sources being used in the CompositeProvider. Ensure that the fields from different sources do not conflict with each other.
  Recreate the CompositeProvider: If the issue persists and is difficult to resolve, consider recreating the CompositeProvider from scratch, ensuring that you carefully map the fields without conflicts.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on CompositeProvider configurations and best practices.
  
  Related Information:
  
  CompositeProvider: A CompositeProvider in SAP BW/4HANA allows you to combine data from different sources (like InfoProviders, other CompositeProviders, etc.) into a single view.
  Field Mapping Rules: Familiarize yourself with the rules and best practices for field mapping in CompositeProviders to avoid such conflicts in the future.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on this error message.
  
  If you continue to experience issues, consider reaching out to your SAP support team or consulting with an SAP BW expert for further assistance.