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Coupon subtracting odd amount! :(

Thread began 3/15/2012 6:02 am by Christopher West | Last modified 3/15/2012 5:42 pm by Christopher West | 503 views | 6 replies

Jason ByrnesWebAssist

in the eCart object, you have set the discount calculation as:

"Based on Cart Subtotal"
subtotal of cart "minus" $_SESSION['PromoAmount']

if you enter "coupon10" this sets the PromoAmount at 10,

so you are telling the cart:

set the total of the discount to subtract from the cart at "<subtotal> - 10"

if you only have a 10 products in the cart, it means:

10 - 10

which equals a discount of $0.

if the cart subtotal is 70:
70 - 10 = 60

the discount becomes $60


instead of "Based on Cart Subtotal", use a flat rate discount of "$_SESSION['PromoAmount']"


the reason you ran into the problem on following the tutorial is that you are using a different type of discount, yours is a flat rate discount, the example in the tutorial is for a percentage based discount.

the tutorial is doing a 10% discount (subtotal * 0.10), whereas you are doing a flat rate of£10 or £20

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