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• Person: Is an individual in your Mobile Database.
• Participant: Is a Person who has one or more mobile interactions, such as sending a text message, with a company but has not yet subscribed to a Subscription List.
• Pending Subscriber: Is a Participant who that has requested to opt-in to a Subscription list, has been sent a prompt to join a Subscription List that has not expired, and but has not yet confirmed their subscriptionopt-in.
  
• Subscriber: Is a Participant who is subscribed to one or more Subscription Lists.

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