The Trade Desk API - Troubleshooting

Updated on

Oct 9, 2025

While configuring your The Trade Desk API connection, you may encounter several issues. Understanding these common errors can help streamline the setup process and facilitate quick resolutions.

Authorization issues

Error message:

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"Access Denied. You do not have the required permissions to perform the requested action."

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This error occurs when the authenticated user does not have Public API access enabled in The Trade Desk Partner Portal. Even if your login and password are correct, the API token will not have the necessary permissions without this enablement. or when the API access token has expired. Since TTD uses a login/password authentication flow that issues a short-lived token (valid for 24 hours),

Solution:

Ensure you’re using the refreshed token in your API calls (tokens expire every 24 hours).‍
‍Ask your Trade Desk representative or account manager to enable Public API access for the user you authenticate with — at minimum the ```PublicAPI_General_View``` scope, plus any additional scopes your integration requires. This is an account-side setting and one of the most common blockers when connecting to the TTD API.