Some requests are made for projects so that:
1- Purchase orders created from requisition will include a project and tasks
2- Quotes and sales orders created if a customer is specified will refer to the project and tasks (this is why, a request and requisition should be limited to a single project)
3. The budget for requests will aslo verify the one from the project/tasks so that the approbation could be done knowing if the costs of the project are on track.