You can query for a subscriber using either their id, email, or phone number. One of the query params is required in order to lookup the subscriber.

The is_pending field in the response tells you if the subscriber has confirmed their phone number or not. Whenever a new subscriber is added, they are required to confirm their phone number in order to receive messages. See Create Subscriber with Keyword for more information on compliance.

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At least one query parameter is required

One of the following params are required in the request:

• id
• email
• phone_number