Link Projects and Contracts
In some cases, we would want to obtain the cost of operating a contract and in some others, we would want to bill project according to some usage.
To be able of doing that, I think that a new billing rule should be define as "Bill according to contract XXXX". By selecting a contract as a billing rule for a task, it would bring so much possibilities like linking CRM cases to projects, ...
I would call that advanced contract management and it would of course requires the Project Accounting suite.