Add Finish-to-Finish dependency without compromising existing Start date of the successor

Rachel Paiva

Scenario: I have Task#1 with a multi-day duration and a Start date that I want to preserve, but I want its end date to match the end date of Task#2.

Adding a FF dependency to Task#1 (making it a successor) would be the easiest way to do this - and it does work as long as the end dates of both tasks are identical at the time you add the FF. However, if the two end dates are NOT the same, the new FF dependency will cause the Start date of Task#1 to shift, presumably because FF prioritizes duration over date.

Would it be possible to make it so that the FF controls only the end date of Task#1, while adjusting its duration to maintain its original Start date?