External web page -- known users shown one field to fill -- show custom HTML
I'd like to use the "show custom HTML" option for a Marketo form, but still ask one form field. The Marketo form is on an external website, NOT a Marketo landing page.
The field we would like to use is called "Deployment Option", with REST API name: "Deployment_Option__c"
Is this possible using the HTML input box for "show custom HTML", maybe with a simple script to let the known user see a select box and pick the deployment option field, which has two choices?
If it is possible, how could it be done?
Thanks in advance for your help.