Hiya! I am looking for solution/formula for below:
I have a due date column and number column with numbers of days (duration).
based on that I’d like my timeline count ‘backwards’. meaning: last day of the timeline is the due date. I used one of the automations available but timeline alwys starts with the due date 
can anyone help please?
I am experiencing the same issue. I need the Due Date to be the End Date of the Timeline column.
Hi Jen,
You can do it with a 3rd party app, called the Advanced Formula Booster. This app allows you to create formulas that write to any column. In this case, you would simply use our TIMELINE function that takes either 2 dates or 1 date and a duration:
In this case, I added a - before the {Duration} field so that it goes backward.