I am blocked with the dates.
I have a project with a deadline for M36. and one of the activities runs from the begining to the end of the project (36 months) and it has a fixed starting date.
The duration that I type for the activity was "36 month" (I type this in the duration field).
I establish the starting date and from the "format/ time scale" I define the M1, M2 date format.
But then when looking to the estimate end of the project it does not finish at M36 but at M34.
I did not add resources to the activity.
What am I doing wrong?