Milestone with Duration greater than zero days in MS PROJECT 2013!


today I will write about Milestones in MS PROJECT 2013! Before I started I would like to thank my MVP friend Oleksiy Prosnitskyy from Ukraine (, who ALWAYS read my Blog, and he is the first who notice me about any error in it. Thank you my friend, I appreciate it so much!

What is Milestone? According to Wikipedia: “Milestones are tools used in project management to mark specific points along a project timeline. These points may signal anchors such as a project start and end date, a need for external review or input and budget checks, among others. In many instances, milestones do not impact project duration. Instead, they focus on major progress points that must be reached to achieve success”

So it can be a end of Project phase, end of whole Project, Contract signed, etc.! According to that Milestone has 0 days duration! Milestone is achieved or not! Let me give you an example in MS PROJECT 2013. Here is the Project:


As you can see, I have activities, and Milestone, when Contract is signed, so after that we can continue with Executing phase of the Project (not shown here). When I put zero days duration, Task is automatically marked as a Milestone. To see that Double Click on this Task, and you can see it here:


When Task has Duration greater than Zero days, I can Mark that Task as a Milestone as well. Just follow the step above.

Now let me assign some Resources to Tasks:


As you can see I put to Task 5 – Contract Signed 2 days duration. When I Mark it as a Milestone, and I will get:


You can see that Contract Signed has Mark as a Milestone, and it Predecessor looks like it has LAG 2 days. Now I will look at Task Usage View:


As you can see, this “Milestone” is in fact, Activity, like any other. It behaves like Activity, but it is only Mark as Milestone!

If you ask me a question: “Why should I Mark Task with Duration greater than zero, as a Milestone?”, My answer will be: “DO NOT! Be consistent and always, ALWAYS put zero days for Milestone.” But that is my opinion, of course. According to Wikipedia, PMI, and other Project Management organization, Milestone is a check point, and it should have 0 days Duration.

Of, course you can disagree with that.



About Nenad Trajkovski

Location: Zagreb, Croatia Occupation: Project Manager Interests: Project Management and MS PROJECT He was born in Zagreb, Croatia at 1963. After completing his college he started working on projects in different business areas (banking, manufacturing, automotive industry, distribution, oil companies, etc.) developing and implementing ERP systems into different companies. He has got a lot of experience working with people in different business processes and also possesses great knowledge in information technologies and financial services. Today he works as a business consultant, adn Project Manager in PERPETUUM MOBILE d.o.o. Zagreb. He is a regular lecturer for Project Management in MS Innovation Center in Varaždin, Logosoft Sarajevo in Bosnia and Herzegovina and SEAVUS GROUP in Skopje Macedonia. He was named the best lecturer of WINDAYS 2008 while his lecture was also voted as the best. In addition, he was in TOP 10 lecturers at the MS SINERGY 2009 and MS VISIA 2009, 2010. Shares first place as the best lecturer of KulenDays 2009 and 2010 and PMI Conference 2009 in Zagreb. He is also a regular lecturer in the MS Community. He is a Certified Accountant and a PMP (Project Manager Professional) and a PMI-RMP (Risk Manager Professional), MCP, MCT, and Microsoft Certified Technical Specialist - Microsoft Project 2010. From 01.01.2012 awarded with MVP (Microsoft Most Valuable Proffesional - Microsoft Project)!
This entry was posted in MICROSOFT PROJECT, Microsoft Project 2013, MS PROJECT 2010, PMI, PRoject Management and tagged , . Bookmark the permalink.

2 Responses to Milestone with Duration greater than zero days in MS PROJECT 2013!

  1. luckyeso says:

    I always like to appreciate you for your contribution to the growth of the Project Management profession. I read in a book that milestones, in addition to the fact that they have zero duration, don’t have any resource attached to them since it is a “state” in the life of a project. Please how do you respond to this?

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