You can also pass in a string representing an HTML checkout page template that you want the mapping service to embed the PunchOutOrderMessage into.

If you pass in an HTML template into your mapping service, the mapping service will replace all occurrences of the string "%value PunchOutOrderMessageString" with the encoded PunchOutOrderMessage. You can use this feature to embed a URL encoded or a base64-encoded hidden form field in an HTML form.

To use this feature, simply pass in the HTML template as a string input parameter template in your HTML form post. The HTML template will be returned as the HTTP response content.