Context: The system previously lacked support for the newest Sunmi terminal models (P3, P2 Lite SE, and P3 Mix), limiting available POS hardware options for merchants.

Solution: Implemented comprehensive support for Sunmi P3, P2 Lite SE, and P3 Mix terminal models by adding them to system classifiers and updating all relevant UI components.

Impact: Merchants and administrators can now order, configure, and manage the newest Sunmi terminal models through the UniPay Gateway, expanding the range of available POS solutions.