If you already purchased our 'professional_templates' and you cant print invoice from POS, then this module will help you
Kopokopo - Safaricom M-PESA Payment Acquirer for Odoo Point Of Sale (POS)
Kopokopo - Safaricom M-PESA payment method/option for Odoo Point Of Sale (POS) based on the new Kopokopo K2 Connect API