Step 4: Review and Fix Errors #

1. Review the error report — hover over any error indicator to see the exact problem.
2. Open your CSV file and fix the invalid values.
3. Click Start Over in Composer Catalog.
4. Drag and drop the corrected file and verify zero errors.

Here is an example where the user did not fill in the GENRE field.

The import system detects tracks that already exist in your catalog and gives you options for each duplicate rather than importing blindly.

MERGE — Adds whatever is different in the incoming track to your existing track. Use when the incoming file has updated data you want to keep. IMPORT AS NEW — Creates a separate entry with a number appended to the title (e.g. “All Alone 2”). Use when you genuinely want two versions. DROP — Skips this track entirely. Use when it is a true duplicate you do not need.

1. If duplicates are found a popup appears showing each duplicate and its match percentage.
2. For each track select Merge, Import as New, or Drop.
3. Use “Apply One Action to All” to handle all duplicates the same way.
4. Click Continue to proceed with the import.

Note: If you make a mistake during import, you can either go to the IMPORT dropdown in your track filter or navigate to Imports > Import History, from the left-hand navigation and find the session and delete them.

This shows how you can do that quickly with the Import History section