In the WhatsApp Business API, Error Code 190 indicates that your access token has expired, resulting in a 401 Unauthorized status. This error prevents API access until a new token is generated.

What Causes Error Code 190?

Error Code 190 appears when the access token has reached its expiration date, meaning the app can no longer authenticate requests using that token.

Solution for Error Code 190

To resolve this error, generate a new system user token by following these steps:

  1. Log into Meta Business Suite.

  2. Choose your business account from the top-left dropdown, then click the Settings (gear) icon.

  3. Go to Business settings.

  4. Click User > System users.

  5. Find and select the system user you need from the list.

  6. Click Generate new token.

  7. Choose the app that will use the token.

  8. Select the necessary Graph API permissions for the app, then generate the token.

For further troubleshooting tips on WhatsApp API errors or insights into maximizing the potential of WhatsApp Business API, visit heltar.com/blogs.