Enable duplicate prevention
1
Link your form to Airtable
In the 
Integrate page, select Airtable. Then, connect to your Airtable account if you haven’t yet.
This feature is available to Business and Enterprise users. For more details on pricing, click here.
2
Turn on duplication prevention
Under Advanced, enable the 
Next, pick the field to base duplication checks on. In this example, we will prevent submissions from getting saved to Airtable if they match another entry in the Product Name field.
Prevent duplicates? toggle.
3
Publish and share
That’s it! Your form will no longer create duplicate entries. Make sure to
Publish your form to make the changes reflect.