Email Failure: Insufficient Permission for 2-Way Sync

The "Email Failure: Insufficient Permission for 2-Way Sync" error occurs when HighLevel no longer has the required permissions to access your connected email account (such as Gmail or Outlook). This typically happens when:

• Email account permissions have been revoked.
  
  
• Your email provider requires you to reauthorize the connection.
  
  
• Your account security settings have changed.
  
  
• The connected mailbox has been disconnected or expired.

Reconnecting your email account restores the required permissions and allows two-way email sync to function normally.

TABLE OF CONTENTS

• Before You Begin: Verify the Error Message
• Why This Happens
• How to Resolve the Issue
• Step 1: Open Email Services
• Step 2: Reconnect the Email Account
• Step 3: Verify the Connection
• If the Problem Persists
• If the issue continues after completing these steps, contact HighLevel Support with:
• Frequently Asked Questions
• Related Troubleshooting
• Still Need Help?

Before You Begin: Verify the Error Message

This article applies only if you see one of the following messages:

• Email Failure: Insufficient Permission for 2-Way Sync
  
  
• Insufficient Permission
  
  
• Errors indicating HighLevel no longer has permission to access your connected inbox

This article does not apply to these errors:

Important: If your error says "Insufficient funds to send email," this is not a permissions issue. Reconnecting your inbox will not resolve the problem. Instead, review your email credits, wallet balance, or billing configuration.

Why This Happens

This error usually occurs when HighLevel loses authorization to your connected email provider.

Common reasons include:

• Your Google or Microsoft account permissions were revoked.
  
  
• You changed your email account password.
  
  
• Your organization's security policy invalidated existing OAuth tokens.
  
  
• The connected email account was removed or disconnected.
  
  
• Your email provider requires you to grant permissions again after a security update.

How to Resolve the Issue

Step 1: Open Email Services

1. Navigate to Settings.
   
   
2. Select Email Services.
   
   
3. Locate the connected email account.

Step 2: Reconnect the Email Account

If the account displays an error or requires attention:

1. Click Reconnect (or remove and reconnect the mailbox if necessary).
   
   
2. Sign in using the correct email account.
   
   
3. Review the requested permissions.
   
   
4. Select Allow to grant HighLevel access.
   
   

Note: Granting all requested permissions is required for two-way email synchronization to function properly.

Step 3: Verify the Connection

After reconnecting:

• Confirm the email account shows as Connected.
  
  
• Send a test email.
  
  
• Verify that:
  
  
  • The email is sent successfully.
    
    
  • Replies appear in Conversations.
    
    
  • Email synchronization resumes normally.

If the Problem Persists

If reconnecting the email account does not resolve the issue:

• Disconnect and reconnect the mailbox again.
  
  
• Ensure you're signing in with the correct email account.
  
  
• Verify that your Google Workspace or Microsoft 365 administrator has not restricted third-party app permissions.
  
  
• Confirm that no recent security policy changes have removed HighLevel's access.
  
  
• Try reconnecting from an incognito/private browser window.

If the issue continues after completing these steps, contact HighLevel Support with:

• The affected email address
  
  
• A screenshot of the error
  
  
• The email provider (Google Workspace, Gmail, Outlook, Microsoft 365, etc.)
  
  
• The approximate time the error first occurred

Frequently Asked Questions

Q. Does reconnecting delete my emails?

A. No. Reconnecting only restores authorization between HighLevel and your email provider. Existing emails remain intact.

Q. Why did this happen if it was working before?

A. Email providers periodically invalidate authorization tokens after password changes, security updates, administrator policy changes, or permission revocations.

Q. Does this affect sending and receiving emails?

A. Yes. Without the required permissions, HighLevel may be unable to send emails, sync incoming messages, or display replies in Conversations.

Related Troubleshooting

If your error message is different, refer to the appropriate troubleshooting guide:

• Insufficient funds to send email — Email Failure: Insufficient Permission for 2-Way Sync
  
  
• SMTP Authentication Failed — Setting Up SMTP Providers
  
  
• Domain Verification Failed — Email authentication and DNS setup
  

Still Need Help?

If you've completed all the steps above and continue to receive the "Insufficient Permission for 2-Way Sync" error, contact HighLevel Support and include:

• The exact error message
  
  
• Your email provider
  
  
• Screenshots of the error
  
  
• Steps you've already attempted

Providing this information will help expedite troubleshooting.