Hi ODOO Community,

I want to create my Shiping express tracking for my company just as DHL solution, where the customer can see and track its product, and see a dashbord for all its shipping product, in the same time I can generate invoice for all my customers and I can track a payment.

I don't know if I can just use odoo, or I have to develop my solution from zero and then integrate it with ODOO for invoicing and sale module.

 And I have no idea How to start ? and How long time will take ? and if the costumer have account in my system, then ODOO will be very slow ?