We are using Avalara's Avatax for calculating sales tax on our website. That integration is built-in to Virtuemart and works well, except with AwoCoupon where it ends up charging 4 times the sales tax amount whenever a gift certificate is used on the order. Any ideas what could be causing this?
Versions:
- Joomla: 3.9.21
- Virtuemart: 3.8.4
- AwoCoupon: 3.5.9.1