When you create a target segment and check for guest count, you can view the break-up of number of guests eligible for marketing emails and text messages:
Total number of guests in the segment
Total number of guests who are eligible for marketing emails
Total number of guests who are eligible for marketing texts

Criteria based on which a guest is counted as eligible for email/text messages
For Emails
- The email address is added to the guest profile.
- The email address is valid.
- The ReceiveMarketing Email option is selected on the guest profile.
- The guest has not moved earlier emails from your business to spam or junk folder.For SMS
- The country selected for the guest's mobile number and the country selected for the guest's address is the same and not blank.
- The mobile number is not empty and valid (length is as per the country selected).
- The ReceiveSMSMarketing option is selected on the guest profile.