From NewHaven Software Wiki

NewHaven Software has created an optional Magento Extension to expand the core capabilities of the Magento API and improve integration with CMS. For basic Magento deployments this extension is optional but it is required for products configured to use attributes (e.g. size and color) and Magento custom fields for data like ad code.

Contents 1 Magento minimum version requirements 2 Current capabilities of the base Magento Plug-in 2.1 Order Downloads 2.2 Order Status Updates 2.3 Product Data Uploads

Magento minimum version requirements

• Enterprise 1.12.0.x
• Community 1.7.0.x
• Go 1.1.2.x (limited support)

Current capabilities of the base Magento Plug-in

Order Downloads

• Payments processed through Authorize.net and Authorize.net CIM via invoice creation during order status updates (see below). Credit card data is not available for download from Magento hosted solutions (Go and Enterprise) due to PCI concerns. In a future version of CMS we will add support for downloading credit card data from their user-hosted solutions (Community and Professional) and is currently scheduled to be included with our next submission (Q4) of CMS for PA-DSS validation.
• Shipcode mapping from Magento codes to CMS codes
• Order level gift messages
• Supports Magento’s coupon codes (imported as ad code)
• Magento order-level custom field support (requires the NHS Extension, see the NHS Magento Setup Guide for more info)

Order Status Updates

• Invoice creation (facilitates Magento’s payment processing)
• Support for back order invoicing
• Global support for billing delayed items now
• Status updates
• Shipment updates with tracking numbers

Product Data Uploads

• Support for Simple and Configurable products
• Creation of new products and updates to existing
  • Product code/sku
  • Descriptions
  • Pricing
  • Inventory
  • Weight
  • Status (enabled/disabled)
  • Attributes (requires the NHS Extension)