WhatsApp Error: Session Has Expired and Access Token Validation Failed

Users of WhatsApp Business API may encounter an error that prevents them from using their WhatsApp Business connection. The error indicates that the session has expired or the access token could not be validated. This issue commonly occurs when the Facebook access token expires, requiring the connection to be reauthorized to refresh the token and restore access.

What Does the WhatsApp Session Expired Error Mean?

This error occurs when the Access Token used to authenticate the connection to Meta services has expired. To resolve the issue, you need to reauthorize the Facebook connection associated with your WhatsApp Business channel so the system can obtain a valid access token.

Error Message

"Error validating access token: Session has expired. The current time is..."

Why Does a Facebook Session Expire?

Facebook sets expiration periods for access tokens for security reasons. This issue can occur for several reasons, including:

1. Expired Facebook Session

Your session may expire naturally over time, requiring you to sign in again and refresh the connection.

2. Logging Out of Facebook on Another Device

Logging out of your Facebook account on another device may affect the session used for the connection, depending on your account settings and session management.

3. Facebook Security Updates

Facebook's security systems may require you to refresh your session or verify your identity before allowing the connection to continue.

4. Changing the Administrator Account Password

Changing the password of the Facebook account responsible for the integration may require you to authenticate again and refresh the access token.

5. Changing Two-Factor Authentication Settings

Changes to your two-factor authentication settings may require additional account verification or an update to the session used for the connection.

How to Fix the Session Expired Error in WhatsApp Business API

You can resolve this issue by reauthorizing your Facebook connection and following the steps below.

Step 1: Reauthorize Your Facebook Connection

1. Go to Settings, then select Channels, followed by WhatsApp.

2. Click Reauthorize.

3. Select Continue with Facebook.

4. Log in using a Facebook account that has administrator or Full Control access to the relevant Meta assets.

5. Complete any security verification steps that appear during login.

6. Grant all the requested permissions to complete the connection process.

Once these steps are complete, the WhatsApp Business API connection will receive an updated access token. This may restore the connection if the issue was caused by an expired token.

Tips to Prevent the Error from Happening Again

To reduce the likelihood of encountering session expiration issues again, follow these best practices:

• Enable two-factor authentication: Protect your administrator Facebook account by enabling two-factor authentication.

• Avoid unnecessary logouts: Avoid repeatedly logging out of the Facebook account used to manage the connection.

• Monitor your WhatsApp channel status: Regularly check the connection status of your WhatsApp channel in your system.

• Review the connection monthly: Set a monthly reminder to verify that the connection is working properly.

Conclusion

The "Session Has Expired" error in WhatsApp Business API occurs when the access token expires or can no longer be validated, preventing the system from maintaining its connection to Meta services.

The usual first step is to reauthorize the Facebook connection using an account with the required permissions, complete any security verification, and grant the necessary access permissions.

Keeping the administrator account secure and regularly monitoring the connection status can also help you identify and resolve session-related issues more quickly.