How To Fix RSPLS493 - Key field &1 has to be a source or restricted to a single value

SAP Error Message - Details

• Message type: E = Error

• Message class: RSPLS - General Messages

• Message number: 493

• Message text: Key field &1 has to be a source or restricted to a single value

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSPLS493 - Key field &1 has to be a source or restricted to a single value ?

  The SAP error message RSPLS493 indicates that a key field in a query or report is not set up correctly. Specifically, it states that the key field must either be a source field or restricted to a single value. This error typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when working with queries in BEx (Business Explorer) or when designing data models.
  Cause:
  
  Key Field Configuration: The key field in question is not properly configured as a source field in the data model or query definition.
  Multiple Values: The key field is being used in a context where it is expected to have a single value, but it is currently set to allow multiple values.
  Query Design: The query might be designed in such a way that it does not comply with the requirements for key fields, such as being part of a characteristic or dimension that allows for aggregation.
  
  Solution:
  
  
  Check Key Field Settings:
  
  Go to the query designer and check the properties of the key field. Ensure that it is set as a source field.
  If the key field is meant to be restricted to a single value, ensure that the filter or selection criteria are set correctly.
  
  
  
  Modify Query Design:
  
  If the key field is part of a characteristic, ensure that it is included in the appropriate dimension or hierarchy.
  Review the query structure to ensure that the key field is being used correctly in the context of the query.
  
  
  
  Restrict to Single Value:
  
  If the key field should only allow a single value, modify the query or report to restrict the selection to a single value. This can often be done by setting a filter or prompt that limits the user’s selection.
  
  
  
  Check Data Model:
  
  Review the underlying data model to ensure that the key field is correctly defined and that it is part of the appropriate InfoObject or data source.
  
  
  
  Testing:
  
  After making the necessary changes, test the query or report to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message.
  Documentation: Refer to SAP BW or SAP HANA documentation for best practices on query design and key field configuration.
  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 resolve the RSPLS493 error and ensure that your query or report functions as intended.