Skip to main content
Toggle navigation menu
Release notes
API Hub
Submit a request
English (United States)
Español
Français
Italiano
Nederlands (België)
Sign in
Market Pay Assist
Payment Terminals
POS Integration
Local API integration
Troubleshooting
Troubleshooting
1. Timeout failures on payment
2. Polling never returns 200 / stuck on 206
3. NotAllowed and LoggedOut errors
4. Duplicate payment or ServiceID reuse
5. Hardware swap detected on login
6. Malformed request / MessageFormat errors