I have a great question form one of my Blog readers:
thanks for your time and experience. I have a question:
I have to tasks 1 and 2.
Task 2 starts with 1 day of delay of the start of task 2 (Start Start +1 day).
But task 2 cant finish until task 1 is finished.
How can I do that?”
I will show you that you can not do that in this way with MS PROJECT 2016!
First I will create a brand new Project with two Tasks:
Now I have to decide, because there is only one dependencies type that can be establish between two Tasks. In this example it has to be Start to Start with delay of 1 day, like this:
an I will get:
In this case, no matter when the Task 1 will be started, MS PROJECT will automatically move Task 2 to start 1 day after Start Date of Task 1.
But no matter when Task 1 will be finished Task 2 will not depend of that Finish date. To do that (make that Task 1, and Task 2 finish at the same date), I have to establish Finish to Finish dependencies:
and I will get:
In this case, no matter when the Task 2 will be finished, MS PROJECT will automatically move Task 2 to finish at the same date as Task 1.
But now I do not have Start Date set for Task 2 one day after Task 1 will be started. Of course I can manually adjust Start Date for Task 2 (and then make Start no Earlier Than constraint for Task 2), like this:
It looks perfect, but it is not. If I, for example, for same case move Task 1 to start at Wednesday, 26.7.2017:
I will get:
Now, I have Start no Earlier Than constraint for Task 1, and the Start Date is Wednesday, 28.07.2017, so Task 2 will start 1 day before Task 1, and not after.
To conclude, you can choose only one dependencies type between Tasks, and then take care manually for the rest , but be aware that in large projects with many Tasks, and multiple dependencies (when one task has multiple predecessors or/and successors) it can be very complicated and you can easily make a mistake which is lately hard to find.