php - Paypal IPN Initial and Subsequent Responses -

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    I am working on a project which PayPal, Li> one time payment

  • Subscriptions
  • Installments

    I'm just curious about these issues:

    1. After a buyer the notification URL Is called, is there auto-debit for every subscription / installment cycle (like monthly, annual, etc.)?
    2. If # 1 is true, then is there any difference in initial subscription / installment payment and IPN response for subsequent payment for the same order?
    3. If # 1 and # 2 are correct, can you give me a sample feedback string to show the difference?

      Thanks in advance.

      The additional variable used below is the quick payment for membership and recurring payment

      for notifications

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