How To Write A Letter To Be Invitended . Hi everyone, i would like to request your presence for a meeting on at to discuss. Your opening lines are the first thing that person will see in the email. Writing Business Party Invitation Letter Tips & Template • ALL DOCS from www.all-docs.net When writing it, the guest must be very careful to include in the letter all of the required information which is: It’s best used for an important business meeting where you need to retain a professional tone throughout the email. Follow the required format if needed.