1. You manually create a Project Summary Task
Wrong:
2. You "hard code" dates
Wrong:
3. You don't input the teams planned Duration on all tasks
Wrong:
4. Your tasks don't start with a verb
5. You assign Predecessors to Summary Tasks
Wrong:
6. You assign Resources to Summary Tasks
Wrong:
7. You never inspect the critical path tasks
8. You never search for (or eliminate) Resource Over-Allocations
9. You never Baseline your schedule
10. You never update your schedule to align with reality
For additional tips and tricks, try
this linkFor assistance from a Microsof Project Certified user, try
this linkFor an online, self-paced training course, try
this link


Note: You may find this online training course of value: