This application offers custom variables you can compose your message to:
fname = First name of contact
lname = Last name of contact
cone1 = custom variable, maybe for the event name
cone2 = second custom variable
Many Message is a way to send mass SMS text messages, or bulk SMS messages to your contacts individually, appearing as direct SMS messages to them. It also allows for per-contact customization with the use of variables without the use of group texting. Other names that define sending many messages to many contacts include text blast or text blasting.