the descripion is in the upload files
the only milestones is the 20%, the rest of the project just release when the project work 100% good like the document requirement
26 freelancer menawar pada rata-rata $613 untuk pekerjaan ini
I have been working on the Odoo project since last 5 years. During this tenure i have worked with lots of data maintenance projects. I think your requirement is not much complex .We can achieve this gracefully.