If no PayOne payment methods are displayed at checkout, there are several standard points you should check to resolve the cause.

Common checkpoints for missing payment methods

1. Make sure that the PayOne plugin is active and deployed in the active set.
2. Check whether the assistant of the plugin has been fully completed.
3. Check whether the payment methods have been enabled in the active customer group.
4. Check whether the payment methods are not blocked in the shipping profile.