Pass entries to third party page

Do you mean when a form is submitted you want to redirect the user to a hosted checkout page and pass the field values to that page?

This is possible, but only if the hosted checkout page supports having data passed to it via the query string.

You would use the Redirect option on the Confirmation section of the Form Settings. You would configure it to redirect to the URL of the hosted checkout page and then use the query string builder to build a query string that passes the form field values to it.

You would need to know what query string parameters need to be passed to the hosted checkout for this to work.

See this screenshot: http://grab.by/a79x

Yes you can pass the value, but it's an undocumented option. You pass the value by modifying the Merge Tag for the field so that it has :value on the end.

For example change:

{Field Name:1}

To:

{FieldName:1:value}