Using predecessors to dictate duration
I have a line in a sheet that I would like to start when another line starts and end when a different line ends. For example, I have 4 lines in a sheet: Line A, Line B, Line C, Line D. I want Line A to begin when Line B begins and end when Line D ends. I want the duration to be malleable and change automatically if the other dates change.
When I try to set this up in Smartsheet using predecessors, the dates always populate based on the duration. The duration seems to be taking precedence over the predecessors. If I don't enter a duration, it automatically populates as 1 day and will end Line A when Line D ends, but won't start when Line B starts. Due to missing dates in other lines in the real project, I can't the lines to have the dates automatically roll up to Line A. Does anyone know a fix for this?