This guide covers common issues and how to resolve them.
API Connection Failed
- Verify JWT API token is correct
- Remove hidden characters
- Ensure outbound HTTPS (port 443) is allowed
- Confirm PHP curl extension is enabled
Subscribers Not Syncing
- Confirm marketingoptin is enabled for the client
- Check Logs tab for API errors
- Verify licence is Active
Webhook Not Working
- Verify webhook URL is correct
- Ensure valid SSL certificate
- Confirm JSON payload includes email address
- Use Webhook Test tab to diagnose
Bulk Import Timeout
- Use cron_bulk_import.php instead
- Increase PHP memory_limit (256M+ recommended)
- Run during low server load
Licence Issues
- Ensure domain matches licensed domain
- Verify outbound HTTPS access
- Contact Snowtech if licence shows expired or invalid
Security Best Practices
- Use HTTPS for webhook endpoint
- Restrict admin role access
- Store API tokens securely
- Keep WHMCS and module up to date
Need Support?
When contacting support, provide:
- WHMCS version
- PHP version
- Error message
- Relevant log entries