Thank you Margaret, I gave it a try but unfortunately not with much success.
Maybe I misunderstood what you said.
I am confused how I can at the same time link phase 2 with my milestone, link phase 1 with phase 2 and also make sure that all the phase subtasks keep their "sequential" order.
I attach a picture and mpp, is this what you mean?



many thanks for all your help!
Nantia

Attached Images

test.png (29.6 KB, 20 views)

Attached Files

nantia_problem2.zip (486.6 KB, 10 views)

Hope I haven't misunderstood what you are trying to do - I have attached what I meant with a before and after picture.

Regards,

Margaret

Attached Images

	MSP answer1.PNG (44.3 KB, 20 views)
	MSP answer2.PNG (41.1 KB, 20 views)

I cant thank you enough Margaret, I do understand now!

One last question please, is there a "clever" way to calculate the optimal lag period? 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?

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?

Apologies for the multiple questions, I am newbie and I am struggling a lot!

Thanks a lot!
Nantia