> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.bigcommerce.com/developer/learn/courses/b2b-graphql/orders-invoices/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.bigcommerce.com/_mcp/server.

# Module 4: Orders and Invoices

> Build amazing commerce solutions powered by the BigCommerce platform

## Docs

- [Orders](https://docs.bigcommerce.com/developer/learn/courses/b2b-graphql/orders-invoices/orders.md)
- [Invoices](https://docs.bigcommerce.com/developer/learn/courses/b2b-graphql/orders-invoices/invoices.md)
- [Payments and Receipts](https://docs.bigcommerce.com/developer/learn/courses/b2b-graphql/orders-invoices/payments.md)
- [Lab - Postman Order and Payment Workflow](https://docs.bigcommerce.com/developer/learn/courses/b2b-graphql/orders-invoices/lab-order-payment.md)