190 Invalid OAuth Access Token

Your Meta User Access Token or System User Token is invalid, has expired, or the user changed their password.

What causes this error?

Your Meta User Access Token or System User Token is invalid, has expired, or the user changed their password.

How to fix it

1. Regenerate the token: Head back to the Graph API Explorer or your Business Manager and generate a new token.
2. Check App Permissions: Ensure the token has the ads_management and ads_read permissions attached to it.
3. Handle expiration: Implement long-lived tokens securely in your backend so they don’t expire unexpectedly.