Resources and Durations – how are they linked in MS PROJECT 2013!


very good friend of mine has a problem:

“Nenad, please help me. I want to have some Resources with different working hours (for Example, John 1 hour per day, Mary 2 hours per day), and when I assign Single Resource (for now) to the Task, I want duration to be changed. But, when I add John to the Task which should have 3 hours of Duration, the Task has the same duration, and nothing changed. What do I do wrong”

Friend of mine sent me an mpp file, and I will show you what was wrong in MS PROJECT 2013!

Here is the Task, with 3 hours Duration:


Here it John, as Resource:


and modified Standard Calendar for him:


When I assign John to the Task I get:


As you can see, nothing has changed. Let’s look at Resource Usage View:


The main, and only reason for that kind of behavior is because the Task is in Manually Scheduled mode.

I’ll now delete the old Task and I’ll create a new one in Auto Schedule Mode:


and again I’ll assign John  to the Task:


Voila, duration is changed. Again, let’s look at Resource Usage View:


As you can seem John will work three days, one hour per day, and that is exactly what my friend wants.

To conclude, to have all benefits from MS PROJECT 2013, use Auto Schedule Mode whenever you can.




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 2010, Microsoft Project 2013, PMI, PRoject Management and tagged , , , , , . Bookmark the permalink.

2 Responses to Resources and Durations – how are they linked in MS PROJECT 2013!

  1. Vuqar İsmayıl says:

    Dear Nenad .

    Nenad, please help me . How can I change hours to m² in Tast Usage ? Because we works with m² , so that I want to change .I can use materials with units,for example ,concrete with m³ ,wood with m³ ,but I couldn’t use works with m³ or m² . In MS Project I can only with hrs .

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