Formstack offers several unique ways to make filling out your forms as painless as can be. In this article, we will talk about prefilling your form by query string parameters. Most websites allow you to pre-populate into your form by passing a value as a Query String.
To create a query string, we must first have a Form with a URL. For example:
Next, we must determine which field we want to pre-populate. For this case, let's say we want to pre-populate the "Mailing City" field with the value "Kalamazoo".
Once we know that we want to populate Mailing City, we must get that field's "id", to find that value, simply right click + inspect it
In this case, our ID is Contact.MailingCity
With all this information, we're finally ready to create a prefill url.
If we have multiple fields to prefill in this way, we must separate the fields with Ampersands (&):
This can be done for any textbox, text area, single or multi-select picklist or checkbox.