Hello

I am struggling with the following tasks dependency problem:

I have:

SUMMARY_TASK
PHASE_1_SUMMARY_TASK
TASK_1a
TASK_1b
PHASE_2_SUMMARY_TASK
TASK_2a
TASK_2b
PHASE_3_SUMMARY_TASK
TASK_3a
TASK_3b

The phases and respective subtasks are supposed to be sequential, i.e. PHASE_1_SUMMARY_TASK has to finish for PHASE_2_SUMMARY_TASK to start etc.

However I have specific dates that the phase 2 should start, which actually might change over time.

So what I want to do is "synchronize" my main "SUMMARY_TASK" based on phase 2.
e.g. if phase 2 date moves ahead in time by 5 days then I would like the tasks of phase 1 and 3 to also be respectively shifted in time.

I have tried to add a task_X which represents my "phase 2 date of interest" and I have linked it with a Start-to-Start dependency" with the "Phase 2 summary task". Picture attached. However what happens now if I move the task_X by 5 days is that phase_2 and phase_3 are shifted in time by 5 days however my phase_1 remains at the same point in time. How can I fix the dependencies so phase_1 also moves?

Hope I explained this clearly..!

Let me know if someone can help!

Regards
Nantia

Attached Images

my_task.png (18.3 KB, 30 views)