Predecessor of one OR another task

moliva ✭✭
edited 12/09/19 in Smartsheet Basics

Hi there, i would like to start an activity 10 days before either activity A OR activity B starts. How should i define the predecessor? BR Marco



  • L_123
    L_123 ✭✭✭✭✭✭

    its based off of row numbers. So if A was on row 1 and B was on row 2 you would put


    exactly like that inside of the predecessors column

  • Alejandra
    Alejandra Employee

    Hi Marco,

    You can have the same predecessor for more than one task, however there currently isn't a way to define an OR criteria. Please feel free to submit a Product Enhancement Request to let our Product team know that you'd like to have this functionality in Smartsheet. 

    To represent a period of inactivity or overlap between the predecessor and dependent, you can use lag time. More information on this can be found here: 

  • moliva
    moliva ✭✭
    edited 04/15/19

    Hi L@123  and Alejandra

    Thank you for your answers. I think I didn't express myself properly - excuse my French wink

    In other words… “Activity C” should start 10 Days before Activity (A or B), depending on which Activity starts FIRST! Example “Activity A” starts on May 1, 2019, “Activity B” starts on June 1, 2019. So “Activity C” is scheduled to start on April 20. Maybe you have an idea how to solve this problem. Thanks a lot in advance! Marco