How To Fix CM_MDQLTYRULEMINING020 - Field value for field &2 of table &1 is not unique.

CM_MDQLTYRULEMINING020 - Overview

• Message type: E = Error

• Message class: CM_MDQLTYRULEMINING - Messages for Rule Mining Run

• Message number: 020

• Message text: Field value for field &2 of table &1 is not unique.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CM_MDQLTYRULEMINING020 - Field value for field &2 of table &1 is not unique. ?

  The SAP error message CM_MDQLTYRULEMINING020 indicates that there is a problem with the uniqueness of field values in a specific table. This error typically arises in the context of data quality rules or data mining processes where the system expects a unique value for a particular field, but it finds duplicates instead.
  
  Cause:
  The error occurs when:
  
  The field specified (denoted as &2) in the table (denoted as &1) contains duplicate values, which violates the uniqueness constraint expected by the data quality rule or mining process.
  This can happen due to data entry errors, data import processes, or issues with data integration where the same value is inadvertently entered multiple times.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicates:
  
  Use SQL queries or SAP transaction codes (like SE16 or SE11) to check the contents of the specified table and identify the duplicate values in the specified field.
  Example SQL query:SELECT field_name, COUNT(*)
  FROM table_name
  GROUP BY