Sent by eBay to request that you add an eBay member to your subscription database. eBay sends this request after the member completes the subscription flow.
Your application must use a subscription listener to receive addSubscriber requests from eBay. When your application receives an addSubscriber request, your application must respond with a status value indicating the subscription status in your database. Specifically, your application must respond with a status of approved, pending, or rejected, so eBay can set the state accordingly.
Note that if a subscriber changes from one of your plans to another, a changeSubscriptionPlan request is sent, rather than an addSubscriber request.
If your application doesn't respond after eBay has sent 6 retries (across a day), then after 24 hours, the retries are stopped and the subscription is put in a cancelled state.
