Quantity Discounts for 1.3

[swguy]

No - must be one or the other.

[jeffh110]

I'm using your module so that I can offer a discount based on total number of items in cart and it works great. I just started using Google Checkout and it won't take the discount into consideration when calculating sales tax. Example

Original price $10.00
Discount 5.00

Total $5.00

Sales tax 6% is $.60 instead of $.30

Any ideas?

[wk4hm]

we use a michigan state tax for only orders in mi but your quantity discount puts the tax on every transaction, do you know how I can fix this?

Thank you very much for your time.

[maineiac13]

I'm running 1.38a using the quantity discount module as well as the discount preview mod. I have set up my discounts simply to be an absolute $ discount depending on the quantity ordered...with no limitations based on category, etc. This is working fine. Now, I wanted to temporarily offer a category specific coupon using the regular zen-cart discount coupon system...but I am running into a problem.

To simplify things, assume all of my products are $5.00 each. I offer a $1 quantity discount for each product with the purchase of 5 or more products.

Now I want to offer a 12% discount coupon only on one category. When I use that coupon and only choose products within that category, the system works fine. However, if I choose products both within and without that category it does not work properly.

Here is what happens. If I order 5 products all within the discounted category...the checkout shows something like this: Total $25...quantity discount $5...discount coupon....$2.40... (That is the correct amount, namely that it applies a 12% discount based on the $20 price reflected after first applying the quantity discount.)

However if I then add a 6th product which is not within the discounted category...I get the following: Total $30....quantity discount $6....discount coupon $2.28....(What has happened is that the discount coupon, instead of calculating based on a total of $20 is instead applying the discount to only $19. This apparently results from the coupon correctly applying the discount to the correct number of products (5)...but basing the $ amount of the discount by deducting all of the quantity discounts, not just the quantity discounts applicable to the products for which the coupon is intended.)

So I wondered if there is a workaround for this problem?

Thanks

[swguy]

Try changing the sort order of coupons so that it is before quantity discounts.

[maineiac13]

Try changing the sort order of coupons so that it is before quantity discounts.

I just tried that but it does not solve the problem. In case I was unclear before I do want the discount to be taken on the price after the quantity discounts....but only as to those products which are included within the category where the coupon applies.

If I change the sort order as suggested then the 12% discount is applied to the Sub-Total price (i.e. the price before the quantity discount.)

So in the examples I gave before, with 5 items priced at $5 each the coupon then incorrectly becomes valued at $3 instead of $2.40(i.e 12% of $25 instead of 12% of $20).

The only good news is that when I then add a 6th item (which is not part of the coupon discount) then the coupon discount does not change....it remains at the (incorrect) amount of $3.

So I still am unable to correctly apply a discount coupon restricted to just one category when I have quantity discounts applied to all categories.

[swguy]

So I still am unable to correctly apply a discount coupon restricted to just one category when I have quantity discounts applied to all categories.

Yes, you would need to write software to do what you want to do.

[swguy]

Quick reminder for new users and people who just want to learn more about Quantity Discounts: there is extensive documentation, examples, code fragments, frequently asked questions, etc. available on my home page. The link is in the readme file, or you can just go to my home page and click the Zen Cart link and search for Quantity Discounts.

I only update the readme file in the contribution when I update the software, but the documentation on my home page is updated constantly. Quantity Discounts is over three years old, so chances are, someone has had the same questions you're having and I've put answers on this page.

[travellers]

Quantity Discounts is over three years old, so chances are, someone has had the same questions you're having and I've put answers on this page.

I'm positive someone has asked this before, if only because the link I followed to the mod explicitly said it, but unfortunately zen search won't find it using any strings I can think of that might have found it!

On the FAQ in your Better Together page, one of the questions is:

Can I do three for the price of two? Four for the price of three?

and the answer was

No. But Quantity Discounts can do this sort of discounting.

. So, went there, installed that, but I'm going crazy here - I can't see anything that will permit me to effectively have 'buy three items from x cat, get the third free'. Yes, I could code a 33% discount in there which would make the above example work, but what about where items in category x have different prices? Basically then, we're looking for 'buy three items, get the cheapest free'. I thought from the text on the QD page that such a thing is feasible - am I wrong?

[swguy]

I should change this wording because it's confusing. The real answer is, "you can do this with Quantity Discounts if you're willing to write code and use the user exits. "