How To Fix APO_BAPI_SPP126 - Characteristics value combination ID is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: APO_BAPI_SPP - Messages in SPP BAPIs

• Message number: 126

• Message text: Characteristics value combination ID is not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message APO_BAPI_SPP126 - Characteristics value combination ID is not unique ?

  The SAP error message "APO_BAPI_SPP126 Characteristics value combination ID is not unique" typically occurs in the context of Advanced Planning and Optimization (APO) when working with the Supply Network Planning (SNP) or Production Planning and Detailed Scheduling (PP/DS) modules. This error indicates that there is a problem with the uniqueness of characteristic value combinations in the context of a planning object or a planning scenario.
  Cause:
  
  Duplicate Characteristic Combinations: The error arises when the system encounters multiple entries with the same characteristic value combination ID. This can happen if the data in the master data or planning data is not properly maintained, leading to duplicates.
  Incorrect Data Entry: During the creation or modification of planning objects, if the characteristic values are not unique, the system will throw this error.
  Data Migration Issues: If data has been migrated from another system or if there have been bulk uploads, it is possible that duplicates were introduced during this process.
  
  Solution:
  
  
  Check for Duplicates: 
  
  Use transaction codes like /SAPAPO/SDP94 (for SNP) or /SAPAPO/PPDS (for PP/DS) to check the characteristic value combinations.
  Identify and resolve any duplicates in the characteristic value combinations.
  
  
  
  Data Maintenance:
  
  Ensure that the master data (like InfoObjects, characteristics, and key figures) is correctly maintained and that there are no duplicate entries.
  If necessary, delete or merge duplicate entries to ensure uniqueness.
  
  
  
  Review Data Migration Processes:
  
  If the error occurred after a data migration, review the migration process to ensure that it correctly handles unique constraints.
  Consider using data validation checks before and after migration to catch duplicates.
  
  
  
  Use BAPIs or Function Modules:
  
  If you are using BAPIs or function modules to create or update planning objects, ensure that the input data does not contain duplicates.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or notes related to the specific BAPI or function module you are using to understand any constraints or requirements regarding characteristic value combinations.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on handling characteristic value combinations.
  Transaction Codes: Familiarize yourself with relevant transaction codes for monitoring and maintaining planning data in APO.
  SAP Community: Engage with the SAP Community or forums for insights from other users who may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.