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Oracle Primavera - PM6

P6 || Duration changes post calendar change

In the Open Standard
Safwan H.Member for 11 years 3 months
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Hi all,

 

Apologies if this has been posted - I did try and look for a similar example. I'm trying to understand why my durations are changing when I change from a normal 5d week calendar (8hrs per day) to a 5d week calendar with non-working days throughout (<5d week calendar).

No changes of hours for each day or changes to the activities themselves. To try and illustrate the issue;

1. Activity A - 5d - on a normal calendar (commencing Monday and completing Friday)

2. Change calendar of Activity A to 5d calendar with blockout days (non-working days)

3. Result; Activity A still ends on the Friday, but duration has been reduced from 5d to 4d, while the expectation is that the duration would remain the same and Activity A would end on the following Monday

Hope that makes sense, and appreciate any assistance / explanation

 

Edit; I should add that there're no expected finish dates or constraints, etc.

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4 replies

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  1. 0
    Zoltan Palffy ·
    #1

    what is your duration type

    what is your duration type set to  ? Use fixed duration and units/time and you will not have this problem 

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  2. 0
    Safwan H. ·
    #2

    Thanks Zoltan,The duration

    Thanks Zoltan,

    The duration type was set on 'Fixed Duration & Units', though when testing it as 'Fixed Druation and Unit/Time' I get a similar result.

    Oddly enough, sample testing the changes under 1 WBS with 9 activities - 3 of the activities duration change whilst the others remain the same when the calendar is changed between 5d blockout vs 5d standard. The remaining 6 activities seem to have similar attributes..so I'm still at a loss as to why this is occuring.

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  3. 0
    Zoltan Palffy ·
    #3

    make sure that the activity

    make sure that the activity type is task and not resource

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  4. 0
    Safwan H. ·
    #4

    All activities in question

    All activities in question are Task Dependent, Fixed Duration & Units (and tested as Fixed Duration & Units/Time), Physical % Complete Type, with no contraints or levelling applied.

    Any other ideas? My current work around is checking if the durations have moved with global changes into UDFs and adjusting accordingly. Though it'd be nice to understand why they're changing in the first instance.

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