We need to update an odoo environment (up-and running) from vs 11 to 12
During the update Data must be preseved the DB must be fully migrated.
All settings, compsny data, forms, lay-outs must be preserved during the update,
There are no optional modules on the current installation only 3 small modifications to the code be preserved:
1. dedicated form [login to view URL] connected to the DB
2. 1-unit button for alternative products (yes-no)
3. product are connected to class of users: large business, small business, medium business, traing companies, institutions to create custom-driven contents