# Additional resources

Source: https://developer.avalara.com/products/ecm/integration-guides/document-management/axa7594314214482/

Guide: Exemption Certificate Management (ECM)

# Additional resources

Find helpful resources to support your use of Avalara products and services.

The following additional resources can be helpful to you when completing the milestones described in this guide:

-   [AvaTax API Reference](https://developer.avalara.com/api-reference/avatax/rest/v2/)

-   [SDKs](https://developer.avalara.com/sdk/)

-   [Certification and badges](https://developer.avalara.com/certification/avatax/)

-   [Avalara Knowledge Center](https://knowledge.avalara.com/)

-   [Avalara University](https://training.avalara.com/)