The standard Odoo roles for sales only give two options 'My documents' and 'All documents'. You will need to setup an additional group that you assign users to, and this group will need to have data access rules defined to limit the sales teams documents they can access. Define data access rules is not so easy unless you are a python developer, but it's all about setting a data rule that filters for the sales teams you want to include. You will note, the 'My documents' group has a data rule that limits the access to your user_id, so it's a matter of finding the equivalent filters to meet your needs, i.e. for the teams you want.

Hello Alex! I can't comment your answer because I'm a new user, but it was exactly what I was looking for. I'm a Python developer, do you think you can help me find the .py file where I can modify this id?