When you have guest lists populated for your event then you can send the Email and SMS to these guests from Guests dashboard. You can even select specific guests to send the EMail/SMS. For this, you just need to follow few steps.

• Open your guest list from the event dashboard.
• Select the guests from the list to which you need to send Email/SMS by selecting them.

• Then click on "Email" or "SMS" at the top center of the guest list table.
  
• This gives you a pop-up where you can select the Email Campaign which you have created in the Guest Communication tab. 

• In the pop-up window, you can see the list of guests to which invitation will be sent.
• Then you can click "Submit" and SMS/ Email invitation will be sent.