How To Fix RSL_UI179 - Max. number (&3) of distinct values reached (PartProvider &1, Alias &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSL_UI -

• Message number: 179

• Message text: Max. number (&3) of distinct values reached (PartProvider &1, Alias &2)

What causes this issue?

Maximum number of distinct values exceeded during execution of a join
analysis.

System Response

The join analysis might be both resource and time-consuming. The process
has therefore been interrupted.

How to fix this error?

This process can be influenced by the RSADMIN parameter
RSDD_LM_JOIN_ANALYSIS. The following cases have to be taken into
account.
Table RSADMIN does not contain RSDD_LM_JOIN_ANALYSIS at all.
The analysis will be interrupted if more than 10000 distinct values are
found (default value).
Table RSADMIN contains RSDD_LM_JOIN_ANALYSIS.
If the value for RSDD_LM_JOIN_ANALYSIS is empty (blank), the analysis
runs until it has finished or the limit for profile parameter
rdisp/max_wprun_time is exceeded.
If a value has been assigned to RSDD_LM_JOIN_ANALYSIS ? 500 for example
? the analysis will be interrupted as soon as the investigated join
contains more than 500 distinct values.

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSL_UI179 - Max. number (&3) of distinct values reached (PartProvider &1, Alias &2) ?

  The SAP error message RSL_UI179 indicates that the maximum number of distinct values for a particular part provider and alias has been reached. This typically occurs in the context of SAP Analytics or reporting tools where there is a limit on the number of unique values that can be processed or displayed.
  Cause:
  
  Data Volume: The underlying data set has a large number of distinct values for the specified part provider and alias, exceeding the predefined limit.
  Configuration Limits: The system may have configuration settings that limit the number of distinct values that can be handled for performance reasons.
  Query Design: The design of the query or report may inadvertently lead to a high cardinality of values being returned.
  
  Solution:
  
  
  Reduce Distinct Values:
  
  Filter Data: Apply filters to reduce the number of distinct values being processed. This can be done by narrowing down the selection criteria in your query or report.
  Aggregate Data: If possible, aggregate the data to reduce the number of distinct values. For example, instead of showing individual transactions, summarize them by category or date.
  
  
  
  Adjust Configuration:
  
  Increase Limits: If you have the necessary permissions, consider increasing the limit for distinct values in the system configuration. This may involve changes in the backend settings or parameters.
  Consult Documentation: Check SAP documentation or consult with your SAP Basis or system administrator to understand the limits and how they can be adjusted.
  
  
  
  Optimize Query Design:
  
  Review Query Logic: Analyze the query logic to ensure it is optimized and does not unnecessarily increase the number of distinct values.
  Use Variables: Implement variables or prompts to allow users to select specific criteria, thereby reducing the number of distinct values returned.
  
  
  
  Consult SAP Support: If the issue persists and you are unable to resolve it through the above methods, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration or version.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on handling high cardinality issues.
  Performance Considerations: Be aware that increasing limits or processing large volumes of distinct values can impact system performance. Always test changes in a development or test environment before applying them to production.
  Documentation: Review SAP documentation related to the specific module or tool you are using (e.g., SAP BW, SAP Analytics Cloud) for best practices on handling large datasets.
  
  By following these steps, you should be able to address the RSL_UI179 error and improve the handling of distinct values in your SAP environment.