> For the complete documentation index, see [llms.txt](https://docs.cloudassert.com/azure-stack-billing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cloudassert.com/azure-stack-billing/2004-1/key-concepts.md).

# Key Concepts

- [Pricing Profile](https://docs.cloudassert.com/azure-stack-billing/2004-1/key-concepts/pricing-profile.md)
- [Credits](https://docs.cloudassert.com/azure-stack-billing/2004-1/key-concepts/credits.md)