Finish date is being calculated from data Date

Dear all,

I am unsure if this is a "glich" but I have noticed that if my DD is say 16 October 23, and I have an 20 d activity that should start on 11/3/ 24 and  finish 10/4/24  ( I dont want to change the DD as activities are still fluid and being added but some have started and i have not been able to set a baseline yet).  If This activity actually started on the 11/3/24 A and then I  F9 the schedule - the fiinsh date is showing as the 13 November 23. ( It looks as though it has added 20D to the DD. ?

Is this correct or a glich ?

A
andrew francis 👤 Member for 12 years 9 months

thankyou gentleman, i am getting to grips with the nuances of P6 comared to MSP.

R
Rodel Marasigan 👤 Member for 19 years 7 months

Hi Andrew,

That is correct and not a glitch. If you have a data date of 16-Oct-23, and the activity mentioned has an actual start date beyond the data date, for example, 11-Mar-2024, with a duration of 20 days but without any constraints or predecessors, P6 will calculate the remaining duration (in this case, 20 days) from the data date based on logic.



Please note that the activity has no predecessors and no start constraints; therefore, the calculation is based on logic or the CPM method (Forward Pass and Backward Pass), and actual start beyond data date will be ignored.

Remaining early Start = Datadate

Remaining early Finish = Datadate + remaining duration (say 20 days) 

D
david kelly 👤 Member for 10 years 3 months

Hmm.

No.

If a 20 day activity has an actual start date of the 11th of March 24, then it will have a finish date of 5th April on a 5 day week. The Data Date is not relevent until it is greater than the Actual Start date

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