Project document management: best structure?

joemillson 

Hello, 

My recommendation is to first look at the facts regarding SharePoint, Teams and OneDrive extensibility (possibilities). We have up to 25 TB for each SP site (that is same for Teams, because SP is containing the data from MS Teams). In Teams, you can create up to 20 private channels (unique permissions for a specific folder), even creates a unique site within the team.

Hub sites are very important to simplify findability and structure your projects (Team sites) with each other, even though the permissions are different.

My recommendation, and I would gladly continue the discussion forward:

A team site for each customer, with channels for each project at that specific customer. 
However, if you have more than 100+ projects on the same team, then that could be difficult to maintain... Also, you would need internal structure to only have the right colleagues with the correct permissions. Because if everyone gets access to the 100+ projects, they would get difficulties with working with Teams.

Yours sincerely,
Aref Halmstrand