How To Fix UA_SM1002 - Column &2 already exists in type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: UA_SM1 - Structure Maintenance

• Message number: 002

• Message text: Column &2 already exists in type &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UA_SM1002 - Column &2 already exists in type &1 ?

  The SAP error message UA_SM1002, which states "Column &2 already exists in type &1," typically occurs during the development or modification of data dictionary objects, such as tables or views, in the ABAP Dictionary (SE11). This error indicates that there is an attempt to add a column to a table or structure that already has a column with the same name.
  Cause:
  
  Duplicate Column Definition: The most common cause is that the column you are trying to add already exists in the specified table or structure.
  Incorrect Data Model Changes: If you are modifying a data model and inadvertently try to redefine or duplicate an existing column.
  Transport Issues: Sometimes, if changes are transported from one system to another, there may be inconsistencies that lead to this error.
  
  Solution:
  
  
  Check Existing Columns: 
  
  Go to the Data Dictionary (SE11) and check the structure or table definition for the specified type (&1) to see if the column (&2) already exists.
  If it does exist, you may need to modify your design to use the existing column instead of trying to create a new one.
  
  
  
  Remove Duplicate Definition: 
  
  If you find that you have mistakenly defined the column again, remove the duplicate definition from your data model.
  
  
  
  Adjust Transport Requests: 
  
  If this error arises after a transport, ensure that the transport request is correctly configured and that there are no conflicting definitions in the target system.
  
  
  
  Check for Active Versions: 
  
  Ensure that there are no active versions of the table or structure that might be causing conflicts. You can check this in the Data Dictionary.
  
  
  
  Re-activate Objects: 
  
  If you have made changes, you may need to re-activate the affected objects to ensure that the changes are applied correctly.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SE11 (Data Dictionary)
  SE14 (Database Utility)
  SE80 (Object Navigator)
  
  
  
  Documentation: 
  
  Review SAP documentation on data dictionary objects for best practices in defining tables and structures.
  
  
  
  SAP Notes: 
  
  Check SAP Notes for any known issues or additional guidance related to this error message.
  
  
  
  Debugging: 
  
  If the error persists, consider debugging the program or transaction that is causing the error to identify the exact point of failure.
  
  
  
  By following these steps, you should be able to resolve the UA_SM1002 error and ensure that your data dictionary objects are correctly defined without duplication.