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IPN, txn_id and subscriptions

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Contributor

IPN, txn_id and subscriptions

Hi all

 

I'm using IPN and subscriptions and have a txn_id returned from the IPN with the first payment. Can I ask, when the next/subsequent payment is made (a month later), is the txn_id the same or is it different? If it is the same for each recurring payment, what variable can I use to identify this different payment?

 

Thanks 🙂