P 6 Constraints not being honored

John

If you use constraints there can be a conflict between relationships and constraints, e.g. an activity is delayed, and due to sequences and durations other activities' constraints can't be fulfilled. Mandatory constraints win, the others loose against the relationships and the activities will be delayed.

Check the log file of scheduling (F9). At the bottom you can find those conflicts.

Do you really need those constraints?

Hope this helps

Dieter

Keep constraints to a minimum.  Use them only for contractual required dates when there would be a penalty for not hitting the date.  Have you tried Longest Path Approximator?  http://scheduling.spacetechnology.net  It is capable of moving the data date back to the beginning of the month, and then you can see the critical path.  Hint:  Ask for  a free sample!

Hi John,

What type of constraints are you using? Only mandatory constraint fixes the date of the activity and other constraints affect the float of the activity. Please read the following posts on constraints for a better clarity on how constraints behave http://www.primaverablog.in/category/important-topics/constraints/ .

If you can give me more details about the type of constraint, Start, Finish dates etc. then we can discuss further.

Thanks & Regards

Amit

Check out my blog on Primavera at http://www.primaverablog.in