// Mini POS wiki
Troubleshooting
Diagnose setup, register, payment, printing, shift, and posting failures safely.
Start with the failing boundary
Record the exact message, company, store, terminal, user, sale number, and time. Check effective setup and permissions before changing data, then use the documented retry or recovery path for the affected subsystem.
Detailed reference
Open the Troubleshooting guide for symptom-based checks and safe recovery steps.