# Ecommerce workflow

Source: https://developer.avalara.com/goods-calculation-en/zya4848315032623/

# Ecommerce workflow

Understand how Avalara processes ecommerce API calls when you start using the platform and during checkout.

This workflow describes the API call process at the moment that you get on the platform and the API call during checkout.

![ECommerce-MarketPlace workflow](https://knowledge-be.avalara.com/bundle/cjw6783699913145_cjw6783699913145/page/sxn6112493828392.image?_LANG=enus)