Aaron D. Campbell

Shopp Improved is a plugin that extends the popular 
<a href="http://shopplugin.net/" rel="nofollow ugc">Shopp eCommerce solution for WordPress</a>. 
You must have the <a href="https://shopplugin.net/store/" rel="nofollow ugc">Shopp 
Plugin</a> in order to use this plugin.
I recently worked on a site where I used the Shopp WordPress plugin to set up 
E-Commerce. The first big issue that I ran across was allowing for user 
customizations of products. For example, if a product can be engraved with a 
name, includes the person’s initials, can include a message, etc. Shopp does 
include the ability to add these kinds of user input fields, but it’s done 
through a template tag. This means that you either have to apply it to all 
items, or you need a developer to set it up on a per-product basis. My client 
has quite a few products that are custom-made, and they really needed to be able 
to set up these fields themselves.
In comes Shopp Improved. It creates a user interface to allow you to easily add 
these fields to any product. The inputs can then be easily integrated into a 
shopp product template with just a couple lines of code.
Requires PHP 5+.

Shopp Improved

A related posts plugin that works quickly evenShopp Improved is a plugin that extends the popular Shopp eCommerce solution for WordPress.

ivycat

Washington State is a <a href="http://dor.wa.gov/Content/FindTaxesAndRates/RetailSalesTax/DestinationBased/MoreSST.aspx" rel="nofollow ugc">destination-based sales tax</a> state. As a Washington-based business, if you sell taxable items within WA, you charge the tax rate of the destination you’re shipping to, rather than the rate of where you’re shipping from.
When selling digital goods, the billing address is use to calculate tax.
Most e-commerce platforms have relatively rudimentary tax calculation tools and tables. <a href="https://shopplugin.net/" rel="nofollow ugc">Shopp</a>, while robust, doesn’t have the ability to calculate the actual sales tax in Washington State based on destination address and zip.
When enabled, the customer’s zip and address information is passed up to the WA DOR along with some basic information about the order and it returns the actual tax rate, and amount for the ship-to address.
<a href="http://dor.wa.gov/Content/FindTaxesAndRates/RetailSalesTax/DestinationBased/MoreSST.aspx" rel="nofollow ugc">Find out more about Washington’s Destination-based Sales Tax</a>

Washington State Sales Tax for Shopp

This plugin ties Shopp, a WordPress e-commerce plugin, into Washington State's Department of Revenue API to lookup destination-based sales tax an …

Shopp Improved vs Washington State Sales Tax for Shopp