I have a number of coupon codes which i want to apply to the cart programmatically.

I have done it like this:

foreach ($coupons as $coupon) //$coupons array of coupon codes

Now what happens is that if the first coupon is valid, it got applied, but after that

  • if the second coupon is valid, it got replaced (first removed, second applied).
  • if the second coupon is not valid it removes the discount applied by the first coupon too.

Now I need help to tackle the situation as how to be able to apply both coupon/rules/discounts if valid (if possible applying two coupon codes)? or not apply coupon code if not valid so that the coupon applied before doesn't got removed.

1 Answer 1


As per as magento system,you cannot apply multiple coupon on a cart.

If you want then need to use

3rd partly extension like amasty


you can use this answer:

Magento Multiple coupon apply on cart

  • Thank you for the quick response i will try it and will get back to you with the results. Thanks again
    – Haris
    Commented Jun 29, 2015 at 8:23
  • Thanks for your answer (accepted), it works fine on magento ver 1.9 but i am getting White Screen of Death on mag ver 1.8 when i add product to cart. In apache error log it say, Allowed memory size of 268435456 bytes exhausted (tried to allocate 262668288 bytes)
    – Haris
    Commented Jun 30, 2015 at 6:16
  • Hi, just need to remove $items = $this->_calculator->sortItemsByPriority($items); to get it working on magento ver 1.8. Thanku :)
    – Haris
    Commented Jul 3, 2015 at 9:50

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