Problem With Impact On Price Decrease

[eyecandy]

problem with impact on price decrease

 

ok i have a 3 piece lingerie set made up of the following.....

 

bra £37 (15 different size options + a "not required" option)

a garter belt £67 (4 size options + a "not required" option)

and knickers £26 (4 size options + a "not required" option)

 

all in a range of different size options. 

 

if a customer wishes to purchase all three items it will cost £130 in total

 

i have added a "not required" option within the dropdown menu for the size options so if the customer only wanted one or two of the items and not all 3

 

how do i use the "impact on price decrease" feature so that the customer can pick and choose items

 

for example they may just want to purchase the bra £37 and the knickers £26 and select "not required" for the belt

making the cost price now only £63

 

i have done what i think is correct however it is just not working so either i am doing it wrong, there is a bug or this is not an available function on prestashop

 

do i set all three size options as default "not required" ?

is there an alternative to the "not required" option i have created?

in the prices section of my product do i set the retail price as £0 or £130?

do i set the impacts on each size option before using the product combinations generator?

if so what impacts exactly do i use and the amounts for each option? 

 

ive tried the following

 

bra "not required"  decrease impact £130

bra size 34C decrease £93

bra size 34D decrease £93

bra size 34E decrease £93

and so on..........

 

Garter belt "not required"  decrease impact £130

garter belt XS decrease £63

garter belt SMALL decrease £63

garter belt MEDIUM decrease £63

and so on..........

 

Knickers "not required"  decrease impact £130

knickers XS decrease £104

knickers SMALL decrease £104

and so on.....

 

i then do a product combinations generator but my prices dont work out right on my product.

 

my brain is now mush and cant see what i am doing wrong, its prob something really simple! :-/

 

please help! x

 

 

[eyecandy]

the issue is when i use the product combinations generator it is changing the impacts to INCREASE! so instead of the combination decreasing by £37 its increasing the price by £37.

 

any help?

thanks

x