Is PayPal creating profile by deducting amount from credit card when user subscribe for trial a period subscription or only deduct amount from the card when trial a week is expire?

It only deducts the amount when the trial week is over.

If PayPal deduct only when trial a week expire then , I believe PayPal is not deducting amount from credit card If user unsubscribe this membership before the expiry date of weekly trial.

Correct, if they cancel during the free trial it will not charge them anything.

There should be no payment IPN when you create a recurring profile. A payment IPN should only be sent when the recurring profile bills at the next recurring. Initial payment is sent with the API to charge for the initial purchase. When the payment IPN comes though it should pay the subscription, but there's a lot of other configuration within CBSubs that can influence this (for example if you only allow a plan to renew 2 times, but the 3rd time is an IPN).

Please also note it's possible previous recurring profiles may not behave well with the new usage. Please ensure you're testing a completely clean install to ensure it's behaving properly. In all my tests everything worked fine so I'm not sure what more to advise, but will take a look again and see if I can find anything.

To confirm is working fine again I retested renewals and they're still working. To test this I forced the recurring profile to activate immediately and the expiration date incremented by an additional year. Please see the below.



The IPN is the renewal and the "Autorecurring payment" is the initial subscription. The plan is a 1 year duration plan. Please see the below of the subscription being active with the correct expiration date.



Below is the payment on PayPal where you can see the double billings (plan is $50).



Next I cancelled the recurring profile directly from PayPal, which sends the below IPN.



The recurring profile has been cancelled and it now cancels the recurring for the subscription, which you can see below.



You'll notice that it now no longer says "auto renewing". This is because a cancel from PayPal only cancels the recurring aspect of a subscription. Cancelling on-site cancels the entire subscription. This is done encase the user cancels or the seller cancels the recurring profile by mistake or PayPal decides to cancel it for whatever reason.

I highly suggest you do not use recurring subscriptions with 1 day. The duration is just too short and everything is going to happen too quickly, which increases the chance of IPN error. I suggest using no less than 1 week.