Restrict form entries by allowing one entry per IP address
- Open the form builder.
- Click the Properties icon in the top-right of the form builder, as shown below. The FORM PROPERTIES pane will appear on the right.
- Navigate to the FORM PROPERTIES > Restrict Form Entries section.
- Check the checkbox next to Allow One Entry Per IP Address, as shown below. A default Error Message will appear below it, which you can customize.