How To Fix RSPLF018 - Reference data is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: RSPLF - Planning Framework

• Message number: 018

• Message text: Reference data is not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSPLF018 - Reference data is not unique ?

  The SAP error message RSPLF018, which states "Reference data is not unique," typically occurs in the context of SAP BW (Business Warehouse) when dealing with planning functions or when trying to execute a planning sequence. This error indicates that the system has encountered multiple entries for reference data that should be unique, leading to ambiguity in processing.
  Causes:
  
  Duplicate Entries: The most common cause is that there are duplicate entries in the reference data (e.g., in the InfoProvider or planning object) that the planning function is trying to access.
  Incorrect Data Model: The data model may not be correctly defined, leading to multiple records being returned for a single reference.
  Incorrect Filters: Filters applied in the planning function may not be specific enough, causing multiple records to match the criteria.
  Data Integrity Issues: There may be issues with data integrity, such as incorrect data loads or transformations that have led to duplicates.
  
  Solutions:
  
  Check for Duplicates: Review the data in the InfoProvider or the relevant data source to identify and eliminate any duplicate entries. You can use transaction codes like RSA1 (Data Warehousing Workbench) to analyze the data.
  Adjust Filters: Modify the filters in the planning function to ensure that they are specific enough to return a unique reference. This may involve adding additional criteria or constraints.
  Data Cleansing: If duplicates are found, consider implementing data cleansing processes to ensure that the data remains unique and consistent.
  Review Planning Functions: Check the configuration of the planning functions and sequences to ensure they are set up correctly and that they reference the correct data sources.
  Test with Sample Data: If possible, test the planning function with a smaller set of data to see if the issue persists. This can help isolate the problem.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), RSPC (Process Chain Maintenance), and others that can help in analyzing and managing data.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Documentation: Review SAP documentation related to planning functions and data modeling in BW to ensure best practices are being followed.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or BW team for further investigation, as they may have additional tools or insights into the specific configuration of your SAP environment.