How To Fix CNV_IUUC_DB_CONN082 - Table &1 already exists in DDIC with different structure

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_DB_CONN - db connection

• Message number: 082

• Message text: Table &1 already exists in DDIC with different structure

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_DB_CONN082 - Table &1 already exists in DDIC with different structure ?

  The SAP error message CNV_IUUC_DB_CONN082 indicates that there is a conflict with a database table that is being created or modified during a data migration or conversion process. Specifically, it means that the table you are trying to create already exists in the Data Dictionary (DDIC) but has a different structure than what is expected by the migration or conversion process.
  Cause:
  
  Existing Table: The table already exists in the database with a different structure (e.g., different fields, data types, or keys).
  Migration Process: The migration or conversion process is attempting to create a new table or modify an existing one, but the existing table does not match the expected structure.
  Custom Development: There may have been custom developments or modifications that altered the structure of the existing table.
  Version Mismatch: The version of the software or the migration tool may not be compatible with the existing database schema.
  
  Solution:
  
  Check Existing Table Structure: Use transaction SE11 (Data Dictionary) to check the structure of the existing table. Compare it with the expected structure that the migration process is trying to implement.
  Adjust Migration Settings: If the existing table is correct and should not be changed, you may need to adjust the migration settings or scripts to skip the creation of this table.
  Modify Existing Table: If the existing table is not needed or is incorrect, you may consider modifying it to match the expected structure. Be cautious with this approach, as it may lead to data loss or integrity issues.
  Delete Existing Table: If the existing table is not required and can be safely deleted, you can drop the table using transaction SE14 (Database Utility) or SQL commands. Ensure you have backups before doing this.
  Consult Documentation: Review the documentation for the migration tool or process you are using to ensure you are following the correct procedures.
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is part of a larger migration project.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), SE80 (Object Navigator).
  Migration Tools: If you are using specific SAP migration tools (like SAP S/4HANA Migration Cockpit), refer to their documentation for specific guidelines.
  Backup: Always ensure you have a backup of your data and schema before making changes to the database structure.
  Testing: If possible, test any changes in a development or test environment before applying them to production.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.