IPN returns a different transaction id [closed]

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Closed 11 years ago.

开发者_运维百科 Improve this question

I have an error with Paypal: IPN gives me a different transaction id from the one shown in PayPal page (displayed PayPal you finish the payment, like in the attached image).

In my IPN file I take the transaction id from $_POST['txn_id']. Now I'm using the sandbox.

Is this my problem?

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PayPal has a different transaction ID for the buyer and seller of a payment. If you compare the transaction ID in the IPN with the transaction ID with the seller's side, you'll find they are the same.

If a buyer calls in with his transaction ID and you want to automatically look up the matching PayPal transaction, use the GetTransactionDetails API.