- Set sales/settings/settings/advanced pricing based on formula 

- In sales/settings/pricelists/pricelists I create a new pricelist with promo code "promo", I add a product for which I set "Apply to: product", select an existing product, choose "percentage" and enter "50,00%", I leave start and end date empty to keep the voucher code active without date limit.

- I save the pricelist item, save the pricelist and go to the webshop

- In shopping cart I set "Coupon Code" active via "personalize" menu, coupon code field appears

- I add the product to the shopping cart, enter voucher code "promo" and hit "Apply"

Now the screen refreshes but no reduction is calculated or shown.

Does anybody have any idea what I'm doing wrong? In a test version of this database I got it to work last week, but with the new db, it can't get it to work anymore.

Thanks in advance for any suggestions or help.