How To Fix RSRTS_CDS172 - Unsupported function parameter in conversion: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRTS_CDS - Messages Transient CDS Queries

• Message number: 172

• Message text: Unsupported function parameter in conversion: &1

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRTS_CDS172 - Unsupported function parameter in conversion: &1 ?

  The SAP error message RSRTS_CDS172: Unsupported function parameter in conversion: &1 typically occurs in the context of SAP BW (Business Warehouse) when working with Composite Providers or when executing queries that involve CDS (Core Data Services) views. This error indicates that there is an issue with the parameters being passed to a function or a conversion that is not supported.
  Causes:
  
  Unsupported Data Types: The error may arise if the query is trying to use a data type or function that is not supported in the context of the query or the underlying data model.
  Incorrect Function Usage: If a function is being used incorrectly or with parameters that are not valid for that function, it can lead to this error.
  Incompatibility with CDS Views: If the query is based on a CDS view that has certain limitations or does not support specific operations, this error can occur.
  Modeling Issues: There may be issues in the way the Composite Provider or the underlying data model is defined, leading to unsupported operations.
  
  Solutions:
  
  Check Data Types: Review the data types of the fields being used in the query. Ensure that they are compatible with the functions being applied.
  Review Function Usage: Verify that the functions used in the query are appropriate for the data types and that they are being called with the correct parameters.
  Update CDS Views: If the error is related to a CDS view, check if there are any updates or changes that need to be made to the view to support the required operations.
  Simplify the Query: Try simplifying the query to isolate the part that is causing the error. This can help identify which function or parameter is unsupported.
  Consult Documentation: Refer to SAP documentation for the specific functions and parameters being used to ensure they are supported in the context of your query.
  Check for SAP Notes: Look for any relevant SAP Notes or updates that may address this specific error or provide guidance on how to resolve it.
  
  Related Information:
  
  SAP BW Documentation: Review the official SAP BW documentation for information on Composite Providers and CDS views.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have found.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it is impacting production systems.
  
  By following these steps, you should be able to identify the cause of the RSRTS_CDS172 error and implement a suitable solution.