Dear all,

My project is reaching 72.20% this week(data date 21-Dec-2012). and our contract project Mechanical Completion date is 30-Apr-2013. now, we are ahead of schedule(bl Cum 65.53%). however, there are some problems:

for many Procurement items, Procurement department keeps changing the forecast Delivary/SAT dates, which definately gonna have a huge negatice impact on our Mechanical Completion date. My supervisor asked me to put the newly forecast Procurement Delivery date into my Actual Schedule(datadate: 21-dec-2012) and to see if the new date pushed the Mechanical Complete date forward, if it does, then we reject the date;if it doesn't, then we accept it.

I said OK (at the bottom of the food chain, you have to do whatever they ask.). then i input the new procurement forecast dates(eg, 15-Feb-2013 for delivery of VESDA) as actual date in P6, then Press F9. after several updates like this, the mechanical complete date did not move at all (still 31-Apr-2013). My boss is very content with this. but i began to doubt about the method, then i input 3-May-2013 for one item and turned out, unsurprisingly, the mechanical complete date did not move at all(still 30-Apr-2013).

i just informed my boss about this, and his jaw dropped. So i need your guys help, have you encounted this and how to solve this problem?

thanks to everyone and Merry Christams!!

Justin