not sure if this problem is in the uc_quote (or uc_flatrate) module, or in uc_coupon
but here's what happens:
if you have a flat rate shipping assigned of $10 per item, and there are two items in the cart, and then you add a coupon (regardless of how much off)... the shipping quote that comes back (when you are first getting shipping quotes, ie: when entering your bill-to and ship-to address) is incorrect in that it will charge $30, not $20. in other words, it seems to be counting the row for the coupon as a product! and yet, when it gets to "review order" the shipping is now calculated correctly
uc_coupon 6.x-1.5
uc_quote, uc_flatrate - 6.x-2.x-dev from 11-03-04
cheers
Peter 'Fish' Fisera
Earth Angel Consulting
Comments
Comment #1
earthangelconsulting commentednote: this was also posted at http://drupal.org/node/1087524 (in the issue queue for Ubercart) since I am not sure in which module the error is occurring.
Comment #2
longwaveDuplicate of #1087524: conflict between flat-rate per-item shipping and uc_coupon