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When someone Subscribes using the Platform, you can use the Subscription Added Callback.
When someone updates their preferences and personal data outside of the Platform, you can use the Update a Person API.
Note: If there is custom data you want to store, you need to set up the custom fields ahead of time.
When you need to add data about your Subscribers, use the Add Person API Call.
When someone unsubscribes, you can use the Subscription Removed Callback.

Note: When a Person adds a mobile number to your preference center, and you want to sign them up, you should go through the Web-Based Subscriber Management process as described in the previous scenario.

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Code Block

title	Subscription Removed Callback

{
   "callback_id":"DEF124",
   "event_id":"AB234SDFD234",
   "event_type":"subscription_removed",
   "event_date":"2017-03-15T15:42:23Z",
   "delivery_attempt":"1",
   "subscription":{
      "person":{
         "id":"ABC123",
         "external_id":"ex1234",
         "url":"/companies/:id/mobiledb/persons/ABC123"
      },
      "subscription_list":{
         "id":"1234",
         "url":"/companies/:id/mobiledb/subscription_lists/1234"
      },
      "opt_in_date":"2017-01-15T15:34:52Z",
      "opt_out_date":"2017-02-18T15:34:52+0000",
      "opt_out_reason":"user_opt_out",
      "acquisition_campaign":{
         "id":"2342312",
         "url":"/companies/:id/campaigns/acquisition/2342312"
      },
      "url":"/companies/:id/mobiledb/persons/ABC123/subscriptions/1234"
   }
}

NOTE: Move these links to be embedded in the sentences above.

For more detailed information on these API and Callback examples, see the following topics:

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