Reschedule uncompleted work and SNET constraint in MS PROJECT 2013


I have a question form my Blog Reader:

“Hi Nenad
I have the issue. My tasks are all set to automatically scheduled. I update actuals weekly and once completed I update the project and select ‘reschedule uncompleted work to start after xxxxx’ . MS project then automatically sets a ‘start no earlier’ constraint with date date(xxxxx) on some of my tasks. I then manually need to remove them the next time i want to update the schedule. Any ideas what is driving this behavior would be appreciated.

I will explain this “issue” in MS PROJECT 2013!

First I will crate simple Project:


As you can see My Project is supposed to start at Feb, 2th and to finish at Feb, 9th. Suppose that I finished Task 1 on time, so I will mark this Task as 100% completed:


and I’ll get:


Now suppose, that today is Friday, 6th, and that I didn’t start with work on Task 2 nor Task 3. So I want to reschedule uncompleted work after this date.

I will first set the Status Date to Friday, 6th:


and I will reschedule uncompleted Tasks after this date:


I will get:


You can see the Calendar Icon in Information Column. For Task 2, and Task 3  it says:


WHY? Is this a Bug. No, it’s not. It is logical. Because TODAY is Friday 6th, Task 2 and Task 3 can’t start before that date. So those Task can start at that date and later, but not before, because that will be back to the Past. How can you start to work on soma Tasks in the Past? You can not. So, my suggestion is: Update all your Tasks with actuals, for example, each Friday, and then Reschedule uncompleted work after that Friday and you will get the Real situation in your Project. And yes, some Tasks will have SNET constraint!

Hope this helps.

Best Regards,



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 and tagged , , . Bookmark the permalink.

5 Responses to Reschedule uncompleted work and SNET constraint in MS PROJECT 2013

  1. Moshe Amit says:


    Thanks for the discussion. I have a supplementary question.
    1. I updated all the project (tasks 2 and 3) to start after Friday 6.2.15.
    2. This put task2 at start date 9.2.15 and task3 on 11.2.15.
    3. Task2 took very long to complete and it will finish on 20.2.15.
    4. There are no dependencies between task2 and task3 which is different then the example above.
    5. Today is -> 15.2.15 <-
    6. I want to reschedule task3 so I "Reschedule uncompleted work to start after 20.2.15.
    I'm working on Project 2010 and what happens is that task3 is not changed. I think that it is not changed because in previous time I rescheduled to start after 6.2.15 this set the task to "don't start before 6.2.15" and now becuase it is not "start as soon as possible" the reschedule does not affect it. Now I Level resources and hell breaks loose.
    Do you know any workaround for this?

    Thanks and have a nice day

  2. Alley says:

    Hi Nenad

    Thanks very much for this explanation.

    So if I had a task of 5 days duration and on the 5th and final day I updated that task to 80%, does project not automatically assign the remaining uncompleted 20% to the following day? Is that something you manually have to monitor and change?

    Thank you


  3. costagenda says:

    Hi Nenad,

    I’m facing several problems in setting up a master project as well as with entering real work values for resources and levelling. I was wondering though if you can handle such a project for me and what the cost of that might be (of course once you have all relevant details).

    I would greatly appreciate your feedback since I’m desperate 😦 to be honest…

    Regards / Efthimios Spiridopoulos

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