How To Fix RSDHA244 - Expert procedure '&1' must have exactly one input parameter

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 244

• Message text: Expert procedure '&1' must have exactly one input parameter

Self-Explanatory Message

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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 RSDHA244 - Expert procedure '&1' must have exactly one input parameter ?

  The SAP error message RSDHA244 indicates that there is an issue with an expert procedure in the context of SAP BW (Business Warehouse) or SAP HANA. Specifically, it states that the expert procedure you are trying to use must have exactly one input parameter, but it seems that the procedure is either missing an input parameter or has more than one.
  Cause:
  
  Incorrect Definition: The expert procedure may have been defined incorrectly, with either no input parameters or multiple input parameters.
  Misconfiguration: There could be a misconfiguration in the way the procedure is being called or utilized in the query or data flow.
  Version Issues: Sometimes, the version of the SAP BW or HANA system may have specific requirements or bugs that affect how expert procedures are handled.
  
  Solution:
  
  
  Check Procedure Definition:
  
  Go to the definition of the expert procedure in the SAP BW or HANA modeling environment.
  Ensure that it is defined with exactly one input parameter. If it has none or more than one, modify it accordingly.
  
  
  
  Review Usage:
  
  Check where the expert procedure is being called in your queries or data flows.
  Ensure that it is being called with the correct number of parameters.
  
  
  
  Testing:
  
  After making changes, test the expert procedure to ensure it works as expected.
  If possible, create a simple test case to isolate the issue.
  
  
  
  Documentation:
  
  Refer to the official SAP documentation for expert procedures to ensure compliance with the expected structure and usage.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes or updates that might address this specific error or provide additional guidance.
  
  
  
  Seek Help:
  
  If the issue persists, consider reaching out to SAP support or consulting with a colleague who has experience with SAP BW or HANA expert procedures.
  
  
  
  Related Information:
  
  Expert Procedures: These are custom procedures that allow for advanced data manipulation and calculations in SAP BW and HANA.
  SAP BW Modeling: Understanding the modeling environment and how to define and use expert procedures is crucial for effective data warehousing.
  SAP Community: Engaging with the SAP Community can provide insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the RSDHA244 error and ensure that your expert procedure is correctly configured.