If you have a domain you would like to use, but you only want a subdomain to point to Menufy, for example "Order.MyWebsite.com". Please add/edit the following records in your Domain's DNS settings.
If you want your full domain to point to Menufy, than please see Pointing your own Domain to Menufy.
After pointing your domain, please contact Menufy and we will complete the setup.
CNAME : order : menufy.com
Below is a screenshot taken from GoDaddy.com. (Your DNS provider's interface may look different)