# Log and display error messages from API responses

Source: https://developer.avalara.com/products/ecm/integration-guides/document-management/phm1636355409289/

Guide: Exemption Certificate Management (ECM)

# Log and display error messages from API responses

Learn how to log and display error messages from API responses in your application.

Now that you understand error handling in AvaTax, a requirement is that your implementation shouldn’t include errors except those that result from normal (but invalid) user input (for example, invalid address data).

Log and display these errors appropriately in your application.