How To Fix RSAN_RT310 - Standard deviation: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAN_RT - Messages for Runtime Analysis

• Message number: 310

• Message text: Standard deviation: &1

What causes this issue?

The standard deviation gives the average error in the estimation of the
dependent variable x0 produced using the regression equation. To be
able to assess the level of the standard deviation, you can place it
into a relationship with the mean value x0 (XAVG0). If the mean value
is 10 for x0 and there is a standard deviation of 1, then the standard
deviation of the estimation is 10%.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSAN_RT310 - Standard deviation: &1 ?

  The SAP error message RSAN_RT310, which indicates an issue with the standard deviation calculation in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence), typically arises during the execution of queries or data processing tasks. The message format includes a placeholder (&1) that usually provides additional context or details about the specific issue encountered.
  Cause:
  The error can be caused by several factors, including:
  
  Data Quality Issues: Missing or invalid data in the dataset being processed can lead to calculation errors.
  Configuration Problems: Incorrect settings in the InfoObject or InfoProvider that is being queried can result in issues with statistical calculations.
  Aggregation Issues: If the data is not aggregated correctly before the standard deviation calculation, it can lead to errors.
  Technical Issues: Bugs or limitations in the SAP BW system or the specific version being used may also contribute to this error.
  
  Solution:
  To resolve the RSAN_RT310 error, consider the following steps:
  
  
  Check Data Quality:
  
  Review the data in the InfoProvider or InfoObject to ensure there are no missing or invalid entries.
  Use transaction codes like RSA1 to analyze the data and identify any anomalies.
  
  
  
  Review Query Configuration:
  
  Check the query definition in the BEx Query Designer to ensure that the standard deviation calculation is set up correctly.
  Ensure that the key figures involved in the calculation are correctly defined and aggregated.
  
  
  
  Aggregation Settings:
  
  Verify the aggregation settings for the key figures in the InfoObject. Ensure that the standard deviation is supported for the type of data being processed.
  
  
  
  Update and Patch:
  
  Ensure that your SAP BW system is up to date with the latest patches and updates. Sometimes, these errors are resolved in newer versions or patches.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. SAP frequently publishes notes that provide solutions or workarounds for known issues.
  
  
  
  Testing:
  
  If possible, create a simplified version of the query or data model to isolate the issue. This can help identify whether the problem is with specific data or the overall configuration.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including the context in which it occurs.
  
  
  
  Related Information:
  
  Transaction Codes: RSA1 (Data Warehousing Workbench), RSTT (Performance Analysis), and RSRT (Query Monitor) can be useful for troubleshooting.
  Documentation: Refer to SAP Help documentation for detailed information on statistical calculations and query design.
  Community Forums: SAP Community and other forums can be valuable resources for finding similar issues and solutions shared by other users.
  
  By following these steps, you should be able to diagnose and resolve the RSAN_RT310 error effectively.