constraints in MS project

G
G T 👤 Member for 15 years 6 months

Hi can I use two constraints in MS project

I have a task that should finish no later than some date and should start no earlier than some date ... and any time between that period ... I will have to level afterwards and I want MS project to fit this task in this interval....

 

Thanks much

H
Hlami Baloyi 👤 Member for 14 years 8 months

G T

 

If you constraint an activity to "finish not later than", you will destroy your critical path, after updating when you reschedule, all activities with a "Finish not later than" constraints will not move their finish dates and hence your critical path will be destroyed.

 

Hope it helps.

R
Rafael Davila 👤 Member for 22 years 4 months

There are constraints and there are constraints.

A slow moving car on a one way street can slow down all behind him.

Try using a milestone after the activity and set the finish no latter than to this activity while you apply the start no earlier than constraint to the first activity.

M
Mike Testro 👤 Member for 20 years 7 months

Hi GT

You should never use constraints in a construction programme - it distorts the logic and criticality.

If you must have a window for any particular task then set up a calendar with non work periods either side of the work window - but do not be surprised at the bizarre results that occur when progressing the predecessors.

And another point - I never let the software do my resource levelling because it will destroy the planned sequences in nanoseconds and you have no idea what it has done to the programme.

Best regards

Mike Testro

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