Hi, I would like to know if it is possible for amember to do send response or something like when a user creates a subscription, and make payment for the subscription, a backend script will be triggered upon the received of that the payment is successful. Thanks.
That is exactly what integration plugins do: http://manual.amember.com/Creating_New_Integration_Plugins
I found this: http://manual.amember.com/Using_site.inc.php_and_hooks? Is there a difference between this and the above? finish_waiting_payment($payment_id) vs subscription_added($member_id, $product_id, $member) ? And second issue is my friend whom has been using amember for his site told me that there is something called postback response or something, is that the same as the plugin hook that you mentioned? Awaiting for your reply. Thanks alot.
Making it an integration plugin allows you to enable / disable / configure more readily than hard coding it via the hooks feature. Just a preference really and dependent on the complexity of what you are trying to accomplish.