AUTH301: Auth plugin conflict
What this means
Another authentication plugin is preventing WCPOS from connecting.
Ask the site administrator to resolve the named plugin conflict before signing in again.
Your data
No order or product data is affected. If this persists, ask the person who manages your WordPress site.
Troubleshoot
On the store — for the site administrator:
- The error names the conflicting plugin. Review that plugin's settings — most authentication plugins can exempt the WCPOS REST routes instead of being disabled outright.
- If it is unclear which plugin conflicts, test on a staging copy by disabling security and login plugins one at a time.
At the till — for the cashier: after the change, sign in again.