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“Supermetrics is a Bitter Experience! We can pull data from nearly any tool, schedule updates, manipulate data in Sheets, and push data back into our systems.”
HubSpot’s native import process creates duplicate contacts when email addresses vary slightly or when contacts exist with different formatting, making manual CSV uploads unreliable for ongoing contact management.
Here’s how to set up duplicate-free contact imports that automatically sync your Google Sheets data to HubSpot contact lists.
Eliminate duplicates with automated contact sync using Coefficient
CoefficientHubSpot’sprovides sophisticated duplicate handling through its scheduled export functionality with UPDATE and INSERT actions. Unlikestandard import that requires manual CSV uploads, Coefficient checks existing contacts by email before creating new ones.
How to make it work
Step 1. Set up data mapping between Google Sheets and HubSpot.
Use Coefficient’s automatic field mapping to connect your Google Sheets columns to HubSpot contact properties. Make sure email addresses are properly mapped as the primary identifier for duplicate detection.
Step 2. Configure UPDATE logic to prevent duplicates.
Set up a scheduled export with UPDATE action that checks existing contacts by email before creating new ones. This prevents duplicates by updating existing records instead of creating new contacts with similar information.
Step 3. Implement conditional exports for data validation.
Use Coefficient’s conditional export feature to only export rows where specific criteria are met, such as email format validation passes. This ensures only clean, validated contact data reaches HubSpot.
Step 4. Schedule automated sync for ongoing maintenance.
Set up hourly, daily, or weekly scheduled exports to maintain ongoing synchronization without manual intervention. This eliminates the need for repeated manual uploads and duplicate management.
Step 5. Use Contact List Sync for direct list population.
Leverage Coefficient’s specialized HubSpot Contact List functionality to directly add validated contacts to specific lists while maintaining duplicate prevention throughout the process.
Start syncing contacts without the duplicate headache
Get startedThis approach transforms HubSpot’s limitation-heavy manual import process into an automated system that handles duplicate prevention intelligently.with Coefficient to eliminate duplicate contacts and streamline your contact management workflow.
