How To Fix RSRTS_CDS042 - Parameter &1 is not used and will be ignored

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRTS_CDS - Messages Transient CDS Queries

• Message number: 042

• Message text: Parameter &1 is not used and will be ignored

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRTS_CDS042 - Parameter &1 is not used and will be ignored ?

  The SAP error message RSRTS_CDS042 indicates that a parameter specified in a query or a data source is not being utilized in the context of the query execution. This typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when working with queries that involve CDS (Core Data Services) views.
  Cause:
  
  Unused Parameter: The parameter specified (denoted as &1 in the error message) is not relevant to the current execution context of the query. This can happen if the parameter is not linked to any selection criteria or if it is not applicable to the data being queried.
  Query Design: The query might have been designed in such a way that the parameter is not needed for the current data retrieval process.
  Changes in Data Model: If there have been changes in the underlying data model or the structure of the CDS view, parameters that were once relevant may no longer be applicable.
  
  Solution:
  
  Review Query Parameters: Check the parameters defined in the query. Ensure that all parameters are necessary and relevant to the data being retrieved.
  Modify Query Design: If the parameter is not needed, consider removing it from the query definition to avoid confusion and improve performance.
  Check Data Model: If there have been recent changes to the data model or CDS views, verify that the parameters align with the current structure and logic of the data model.
  Testing: After making changes, test the query to ensure that it executes correctly without any warnings or errors.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. SAP frequently updates its knowledge base with solutions for common issues.
  Documentation: Refer to the official SAP documentation for BW and CDS views to understand how parameters should be used and how to design queries effectively.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  
  By addressing the cause of the error and following the suggested solutions, you should be able to resolve the RSRTS_CDS042 error effectively.