Customize the week numbers displayed on your Plan Timeline by setting a start date for your plan. This allows the week counter to align with your project’s schedule.
Set the Start Date for Week Numbers
Select the three dots next to the Phase Plan name.
Select Edit.
Enter the desired Start Date for your week numbering.
Turn on Use this plan's Start Date.
Select Save.
Note: If no start date is specified, the week counter will begin on January 1.