So here's what is happening. I have IPN notifications setup for my WHMCS installation (our company's customer portal), and it works fine. However, there's a bit of a problem. My standard payment buttons I set up through PayPal and embedded in unrelated places, are also sending IPN notifications to my customer portal URL, and since these buttons are used for various unrelated payments, they don't have any corresponding transactions at the IPN destination URL, so they fail. Any ideas on how I can keep my normal payment buttons from sending IPN notifications?
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