custom return url doesn't work

I set up the s2member pro form below:

[s2Member-Pro-PayPal-Form success="url" level="1" ccaps="" desc="£10.5 GBP / One Time ( for 3 month access, non-recurring )" ps="paypal" lc="" cc="GBP" dg="0" ns="1" custom="billharvest.co.uk" ta="0" tp="0" tt="D" ra="10.5" rp="3" rt="M" rr="0" rrt="" rra="2" accept="paypal,visa,mastercard,amex,discover,maestro,solo" accept_via_paypal="paypal" coupon="" accept_coupons="0" default_country_code="" captcha="0" /]

I have set the correct url, it works when I use visa payment method, but it doesn’t work when I use paypal payment method, when I finish the payment, the custom will not show, it’s still redirected the payment page.

Is there any configuration I need make on my paypal account?

I used paypal sandbox to test these.

Hello Rocwing,

The pro-forms require s2Member pro, do you have s2Member pro?

Also, the success=”” value, does it have an URL? Cause for now it just says url, I suppose you wanted to avoid giving the whole URL.

Yes, I got a developer version from my friend, I have set the right url. It works on visa, but doesn’t work on paypal.

Hello Rocwing,

I don’t know why the URL wouldn’t work.

Also, the s2Member license doesn’t allow that:
s2Member® » Prices/Licensing

Please note… if you’re a developer, your clients will need to purchase their own Single-Site and/or Unlimited-Site License. We will not support s2Member® Product instances on domains that you do NOT own and operate yourself. We invite all developers to join our affiliate program, and refer their clients to s2Member.com, where your clients may purchase an s2Member® Product of their own. This also gives your clients access to future releases.