Can I add a host to my event?
Party City has a great co-hosting feature. When you add a co-host, your invitation will appear in their account. A co-host can invite their own guests, make changes to the design and details and send messages. The only difference is the co-host cannot delete the invitations.
To add a co-host head to your Invitation Options page and find the "Add a host" option towards the bottom of the page. A co-host can also be added from the Manage Invitation page, in the "Actions" menu.