Error
Error Code:
349
SAP S/4HANA Error 349: Duplicate Index Key Found
Description
This error indicates an attempt to create a unique index on a database table that already contains duplicate values in the specified column(s). It typically occurs during data migration, system upgrades, or custom development when data integrity rules are violated.
Error Message
ERR_SQL_CREATE_UNIQUE_INDEX: Cannot CREATE UNIQUE INDEX; duplicate key found
Known Causes
3 known causesExisting Duplicate Data
The database table already contains one or more rows with identical values in the column(s) intended for the unique index, violating the unique constraint.
Incorrect Data Import
During a data import or migration process, duplicate records were inserted into the table, leading to a conflict when a unique index is subsequently created.
Application Logic Error
Custom application code or configuration attempted to create a unique index on a field that is not truly unique based on the underlying data or business logic.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service