Redeeming coupon code from URL?

[Cindy2010]

Guess this should be simple but can't find it in google:
Is there a way that customer can redeem a coupon by simply coming to my site via a URL and I put the coupon code in the URL?
Like: www.mysite.com?coupon=ABCDEFG
Then the ABCDEFG will appear in the checkout page.

Thanks.

[nidkolio]

Looking for exact same thing!

[Ajeh]

If you send yourself a Discount Coupon from your email, you will see how the URL is written for this to work ...

[nidkolio]

Thanks a lot, will try this!

[nidkolio]

OK, tryed it...

We're pleased to offer you a Store Coupon
You can redeem this coupon during checkout. Just enter the code in the box provided, and click on the redeem button.
The coupon code is Дарение
The coupon is valid between 02.02.2011 and 02.02.2012
Don't lose the coupon code, make sure to keep the code safe so you can benefit from this special offer.
Visit us at http://www.pet-paw.com/

This is the text in the email that i got. I do not see URL with coupon code in it...
Any suggestion where i am wrong?
Thanks

[Ajeh]

Well ... actually I goofed ...

I was thinking of Gift Certificates not Discount Coupons ...

Discount Coupons are redeemed on the checkout_payment page ...

There isn't, at this time, a way to redeem Discount Coupons from another location ...

You can do a lookup for a Discount Coupon to see if it is valid and its restrictions ...

The biggest problem is that a Discount Coupon requires valid products in the shopping cart, before it can be redeemed ...

Then, once redeemed, if the content of the shopping cart changes and there are no longer valid products in the cart then the Discount Coupon is removed ...

[nidkolio]

Humm, im a bit confused already...

There is an option Customers Referral Status.
As i understand, this referral thing works with coupon code.
When new costumer register on the page there is a field where this coupon can be set. So we know this costumer is referred by someone.
The deal is that the easyest way is to place this code in the url. So when someone join this field will be already filled instead of manually typing it.

Now there is an option to add this manually, but from advertise point of view the person who sends new costumers to my shop will not be sure that they will be referred by him, because they simply can be too lazy to add this code in the field.

Hope that i wrote this understandable... huh

Thanks

[Ajeh]

This would all have to be customize ...

Currently, the Referral Code, even if used as a Discount Coupon still would need to be added during the Checkout on the checkout_payment ...

So you would need a link in an email to take the customer to the Login ...

That link would need to include the Discount Coupon code that could then be used for the referral code to pre populate the field ...

You could take it a step further that on the successful creation of an account that the Referral code is used to set the Discount Coupon ... but if there are any restrictions on the Discount Coupon it will fail as there is nothing in the shopping cart to validate the Discount Coupon ...

The other way the Referral can be done is to use the first Discount Coupon that the customer uses in the checkout ... this would then only need one entry of the Discount Coupon, providing the Shopping Cart Products qualify for the Discount Coupon ...

Another way to do all of this is to build in a check for the URL in the email where there is a code passed and that code is tested for being a valid Discount Coupon code ...

If valid, then per-populate the Referral Code on the create account and set that as the current Discount Coupon coupon_id on the session variable:
$_SESSION['cc_id']

then when the customer gets to the Checkout and the checkout_payment if the Discount Coupon is not valid for the Order it would be removed ...

This would take quite a bit of customization but it could be done ...

Granted, this would only work if the customer immediately creates an account, unless you take it a step further and try to set the
$_SESSION['cc_id']

from the referral code on the URL and it stays active during the session and the customer would eventually create an account and use that ...

However, if the customer's session times out, then the:
$_SESSION['cc_id']

would be lost and the customer would need to manually enter the Discount Coupon code during the create account and/or during the checkout_payment ...

[nidkolio]

Thank you for your answer and time!
It sounds to complicated for me.
My idea was to know if there is something already build in...
will figure out his one in the future:-)
Thanks again

[noKnots]

I added this (early on in me execution line):

$sopDiscountCode = $_GET["sopCode"];
//sopCode is what is in my url ***.php?sopCode=balance2011

if (isset($_GET["sopCode"]))
{
if ($_GET["sopCode"]=='balance2011')
{$_SESSION['sopdcode']=1; //1 is the code from the admin consol for that string
$_SESSION['sopddesc']="*** 20% off Active<br />Care of Tom Turner"; //this is what shows on the website}
if ($_GET["sopCode"]=='relief2011')
{$_SESSION['sopdcode']=3;
$_SESSION['sopddesc']="*** 20% off Active<br />care of Tom Slusser";}
}

if (isset($_SESSION['sopdcode']))
{$sopDiscountCode= $_SESSION['sopdcode'];}

//I then place at the top of: templates/[myTemplate]/templates/checkout_shipping_default.php:

$_SESSION['cc_id']=$sopDiscountCode;

//Which seems to do the trick, hack as it may be..

//We are doing all this for QR Code discounts ##

//hope this helps