Clean up your view by removing hidden formatting errors.
Why are duplicates appearing?
Duplicates are often caused by hidden whitespaces (extra spaces) before or after the text in your taxonomy file. The system recognizes "Segment A" and " Segment A" as two completely different paths, causing them to display twice in the UI.
How to Resolve:
Clean Your File: Open your taxonomy CSV and remove any accidental spaces at the beginning or end of your category names and IDs.
Re-upload: Upload the cleaned file to ensure all datasets are correctly mapped to the proper, single path.
Delete the Error: Once your data has moved to the correct path, you can manually delete the duplicate/incorrect entry directly within the Manage Onboarding UI.
Pro Tip: Use the "Find and Replace" or "TRIM" function in Excel to quickly remove all leading and trailing spaces across your entire file.