How To Fix DO952 - Secondary Index &: Indicator for Unique & is not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: DO - Dictionary: Mass activation of domains and data elements

• Message number: 952

• Message text: Secondary Index &: Indicator for Unique & is not valid

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DO952 - Secondary Index &: Indicator for Unique & is not valid ?

  The SAP error message DO952 indicates an issue with a secondary index in the database. Specifically, it suggests that the indicator for uniqueness of the secondary index is not valid. This error typically arises during the creation or modification of database objects in the Data Dictionary (DDIC) or when trying to activate a table or an index.
  Cause:
  
  Invalid Uniqueness Setting: The uniqueness indicator for the secondary index is set incorrectly. For example, if the index is marked as unique but the fields defined in the index do not guarantee uniqueness.
  Data Inconsistency: There may be existing data in the table that violates the uniqueness constraint defined by the secondary index.
  Incorrect Configuration: The secondary index may have been configured incorrectly in the Data Dictionary.
  
  Solution:
  
  Check Index Definition: Review the definition of the secondary index in the Data Dictionary (transaction SE11). Ensure that the uniqueness indicator is set correctly based on the fields included in the index.
  Data Validation: If the index is supposed to be unique, check the underlying table for duplicate entries that would violate this uniqueness. You can use SQL queries to identify duplicates.
  Adjust Uniqueness Setting: If the index should not be unique, change the uniqueness setting in the index definition to non-unique.
  Recreate Index: If necessary, delete the existing index and recreate it with the correct settings.
  Activate Table/Index: After making the necessary changes, try to activate the table or index again.
  
  Related Information:
  
  Transaction Codes: Use SE11 (Data Dictionary) to view and modify table and index definitions, and SE14 (Database Utility) to manage database objects.
  Check for Duplicates: You can run a query like the following to check for duplicates in the table:
  SELECT field1, field2, COUNT(*)
  FROM your_table
  GROUP BY field1, field2
  HAVING COUNT(*) > 1
  
  SAP Notes: Check SAP Notes for any specific issues related to your version of SAP that might provide additional context or solutions.
  
  If the problem persists after following these steps, consider reaching out to your SAP Basis team or consulting SAP support for further assistance.