Hi Nantia,

Don't worry about it, I post questions as well when I get stuck

One last question please, is there a "clever" way to calculate the optimal lag period? I would made the lag period the same as the duration of the preceding phase. For example, Server 1, Phase 1 has a duration of 3 days so the dependency for task 3 would be 7fs-3days.

Ideally in my project, all tasks should be sequential with no delay between them. So when we say that task 4 ('Pre-check') has dependency '7fs-10d' then this means that task 7 (phase 2) can start 10 days after task 4 has finished, correct? Correct - see above

Does it make sense to have a different lag period per server depending on the duration of phase 1? Or the lag period should not be related at all with the actual duration of the tasks of phase 1? Based on how I would approach it, it is related to the duration of phase 1.

Hope this helps,

Margaret