We find that letting people create their accounts on their own (vs importing) is best because it does two things:
- They know if they created their account and what they used to create it with (they could create it with either their email, or their phone number). Once inside, they can add both and even tell how they want messages delivered on a per-topic basis (txt, email, voice, etc).
- The FCC doesn't want you opting people into any list. It's always better to let people subscribe on their own. When we import, we do it planning to send out an initial notification to tell people about the service and hope they want to stay subscribed. But it also creates an effort for them. If they don't want to be subscribed, they have to log in and unsubscribe from things.