How To Fix RSRTS_CDS178 - Conversion: parameter &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRTS_CDS - Messages Transient CDS Queries

• Message number: 178

• Message text: Conversion: parameter &1 does not exist

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRTS_CDS178 - Conversion: parameter &1 does not exist ?

  The SAP error message RSRTS_CDS178 with the description "Conversion: parameter &1 does not exist" typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when there is an issue with the parameters being passed to a query or a calculation view. This error indicates that the system is trying to reference a parameter that has not been defined or is not available in the context of the query or calculation.
  Causes:
  
  Missing Parameter Definition: The parameter referenced in the error message (&1) is not defined in the query or the calculation view.
  Typographical Error: There may be a typo in the parameter name when it is being referenced.
  Changes in Data Model: If the underlying data model has changed (e.g., a field was removed or renamed), it could lead to this error.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain parameters or data elements.
  Incorrect Query Design: The query may be incorrectly designed, leading to references to non-existent parameters.
  
  Solutions:
  
  Check Parameter Definition: Verify that the parameter referenced in the error message is correctly defined in the query or calculation view. Ensure that it exists and is spelled correctly.
  Review Query Design: Go through the query design to ensure that all parameters are correctly set up and that there are no missing or incorrectly referenced parameters.
  Update Data Model: If there have been changes to the underlying data model, update the query or calculation view to reflect those changes.
  Check Authorizations: Ensure that the user executing the query has the necessary authorizations to access the parameters and data elements involved.
  Test with Different Parameters: If applicable, try running the query with different parameters to see if the issue persists, which can help isolate the problem.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on parameter usage in queries and calculation views.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Use transaction codes like RSRT (Query Monitor) to test and analyze queries directly.
  Debugging: If you have access, consider debugging the query execution to see where the parameter is being referenced and why it is not found.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.