You can use a hidden form field to pass a value into a property without requiring contacts to fill in the corresponding form field.
For example, when a contact submits a Request a quote form, you may want them to automatically have a Status of Open. You can use a hidden field to set a value of Open on the Status contact property without the contact explicitly filling out that form field.
When using hidden form fields, please note the following:
If theMake this field required option is toggled on for your form field, this field cannot be set as hidden.