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FAQ MS Project – What If I Don’t Know How Long a Task Will Take To Complete? 

 August 2, 2020

By  Dave Litten

FAQ MS Project

What If I Don’t Know How Long a Task Will Take To Complete?

Do I Have to Enter a duration?

If a task is Manually Scheduled, you can enter To Be Decided (tbd), or similar text into the duration field.  If you also enter a Start Date or you attempt to link a Manually Scheduled task that has no duration, Project gives you a Start-Only Placeholder Gantt bar.

Dave Litten


David spent 25 years as a senior project manager for USA multinationals, and has deep experience in project management. He now develops a wide range of Project Management Masterclasses, under the Projex Academy brand name. In addition, David runs project management training seminars across the world, and is a prolific writer on the many topics of project management.

The Projex Academy

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