We as headquarter office want to develop an automatic system admin invoicing system web-based.
The data such as total transaction is taken from 3rd party system web-based where they provide API (JSON, XML, etc) to send the data to this system that I would like to develop.
The invoice will be created per account. Each account has different commission percentage amount.
So, the invoice calculation is from the commission per account which will be generated by percentage from total revenue.
Another feature, each account can login and access their own invoice from headquarter office.
The timeline of development this system is 3 months.