Material Resources and Calendars in MS PROJECT 2013 – where is the link?


as usual, I have a question from one of my Blog Readers:

“Hi Nenad. i follow your blog step but i added resource as material not as work, but it doesn’t come up to me in the calendars list to adjust its working/non working time. is there a reason for that or is it just a bug?

I’ll show you that in MS PROJECT 2013.

Suppose that you want to build a wall:


You need two type of Resources: John as Work Resource (he will build the wall), and Bricks as Material Resource (you need Bricks for the wall, don’t you?)


As you can see, I can not assign any Calendar to the Material Resource

I will now assign John to the Task, and 100 Bricks for the same Task:



and I’ll get:



Let’s say that there is a Holliday at Tuesday 11.3.2014:



I’ll get:


As you can see, the Task will be finished at Monday, 10.03.2014, nota at Friday 14.3.2014, because it needs 5 working days.

And only John is affected (e.g. Working Resources) with Calendars. But why not Material Resources as well?

Because, for example Bricks, are not available at certain period. You have them or not. It is logical. On the other hand, let suppose that you have a machine need for building a wall, and you do not have them available all the time. In that Case, you should create, for example, Machine as work Resource, make a Calendar for it’s availability and then assign them to the Task.


Now I will tell to MS PROJECT when the Machine is available for my Project:


and I will get:


Now let’s look at Resource Usage View:



As you can see, the Machine is over allocated at Monday, and Tuesday. If I do not use this method, but if I change Calendar for Machine like this:


I will get:


So the Task will be finished two day latter. let’s see Task Usage View:



No the Machine is not Over allocated, but there is something wrong with this scenario. I John need the Machine for the work he couldn’t work without it at Monday, and Tuesday .

So you have to be extremely careful when you are using exceptions, and calendars for Resources.




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, MS PROJECT 2010, PMI, PRoject Management and tagged , , , . Bookmark the permalink.

2 Responses to Material Resources and Calendars in MS PROJECT 2013 – where is the link?

  1. Rajmund says:

    Nenad, you can assign just John as the work resource and assign the Machine Calendar direct to the the Task “Building the Wall”. The task will be scheduled, when both John and the machine will be available simultaneously.

  2. ingjhonrico says:

    great blog feed, thank you Nenad

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