Tax calculation API

A tax calculation API is created to provide specific parameters to a tax calculator engine, SAP in this case.

The following parameters are to be used in a tax calculation generic API:

• Cart line:
  • Delivery location (from the checkout cart line)
  • System date
  • Purchase quantity (from the checkout cart line)
  • Total line amount (from the checkout cart line)
  • Currency (from the Fx Currency field in the cart line)
• Supplier record:
  • Street address, City, State, County, Zip, Country, Region (from the vendor's supplier record)
  • Legal name (from the vendor's supplier record)
• Supplier product record: Model category (from the product model)
• Product model: Unit (from the cart line)

A staging table is also created that includes the following output parameters for the API:

• Tax amount
• Tax jurisdiction
• Tax type/description
• Tax percentage