About Subscription

[ryonnsan]

Hi all,

I have been a Paypal user since years ago, but I am still not an expert of setting up Paypal gateway.

I have a case about setting up a Paypal payment gateway for subscription, while the subscription can change in the future.

So in my case, the user is able to subscribe to a certain product, say for $5.00/month.

However, after a few months, the user might also able to add subscription to another product, which cost, $4.00/month.

Thus the total will change from $5.00/month to $9.00/month

How can I set the system to change the subscription of this user? I am using PHP.

I am not sure where to start for this subscription modification matter,

and also I found in the Paypal document that "For recurring payments with Express Checkout, the payment amount can be increased by no more than 20% every 180 days (starting when the profile is created)." 

https://developer.paypal.com/docs/classic/api/merchant/UpdateRecurringPaymentsProfile_API_Operation_...

I am lost. Please help.

Regards,

Ron

[niknah0 · Accepted solution]

You can setup the user with the pre-approval api.

https://developer.paypal.com/docs/classic/api/adaptive-payments/Preapproval_API_Operation/

Then use the Pay API to charge them.

https://developer.paypal.com/docs/classic/api/adaptive-payments/Pay_API_Operation/

When the user enters in PayPal they accept the amount that they'll be charged.

They don't want people being sneaky and changing the subscription too much in the background.