Using Products Price Manager & Discount Pricing Group Together

[MeltDown]

A number of my categories use the Products Price Manager to define multiple-tier quantity discounts. If I create a coupon or offer the customer-specific Discount Pricing Group, the discounts are combined at checkout, when what I want is to ignore the Products Price Manager quantity discounts, replacing it with the coupon or Discount Pricing Group discount.

Is this possible?

Thanks

[swguy]

Nothing is built-in to do this; you'd have to change the code. And it would be a bit of a shock, since coupons aren't entered until page 2, so you could have (say) a subtotal of $100 going onto the payment page, enter a coupon, and wind up on the checkout confirmation page with a total of (say) $120 if you were to do this (since the products price manager changes the price of the product in the cart).

[MeltDown]

Nothing is built-in to do this; you'd have to change the code. And it would be a bit of a shock, since coupons aren't entered until page 2, so you could have (say) a subtotal of $100 going onto the payment page, enter a coupon, and wind up on the checkout confirmation page with a total of (say) $120 if you were to do this (since the products price manager changes the price of the product in the cart).

Thanks Scott - Do you have any modules that do what I need?

[swguy]

You could use Quantity Discounts from the Plugins Area instead of Products Price Manager, but you'd still need to add code to turn them off if a coupon is used or Group Pricing is used. Also, if you upgrade from 1.3.8 (you really should) you'll get all the fixes to make coupon restrictions work so that you can disallow using coupons on things with quantity discounts.

[MeltDown]

Hi Scott - I've begun the process of upgrading to 1.5.1. You said:

you'll get all the fixes to make coupon restrictions work so that you can disallow using coupons on things with quantity discounts.

Did you mean that by using your Quantity Discounts add-on I could make coupon restrictions to disallow pre-set quantity discounts? Or that I could do so with Zen's Products Price Manager? Could you expound on how I would go about this?

Thanks for you help.

[swguy]

This wasn't very clear. You'll have to pick and choose the items that are currently quantity discounted (using the Products Price Manager) and add those in as restrictions that the coupon cannot be used against. There's no mechanism to say, "Don't apply the coupon to anything with a quantity discount" without actually changing code to work this way.