How can a user of POS fetch the sales order and register the payment in POS?

Scenario is my client ordered few items worth P180. I then packed them. Client came to pay in cash to the cashier (POS), paid P200, collected the change P20, and picked up the ordered items. How to do this in ERPNEXT? In other words, how can a POS user (a cashier) fetch the order in the sales order module and made the invoice/payment in the POS app?

Don’t think core V13 POS can do this. Try with POS Awesome app. It can generate sales order so I guess it can search for sales order and make payment.

Standard method is to use Sales order directly to make payment. POS user can tick ‘is pos’ to have the transaction in daily closing report.