CHECKOUT999: Checkout unexpected
What this means
Checkout hit an unexpected problem.
Check the order in your store admin before charging the customer again. Export diagnostics and contact support if the problem repeats.
Your data
The outcome could not be confirmed — verify before retrying. If this persists, export diagnostics and contact WCPOS support.
Troubleshoot
- Check WooCommerce → Orders in WP Admin for the order before charging the customer again.
- Expand the log entry and note the event code and any serverCode — this generic code means the cause has no dedicated code yet.
- If it repeats, export debug info and contact support.