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Oracle Primavera - PM6

P6 Calculation of actual units

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Umer ArshadMember for 15 years 9 months
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Can anyone out there explain why P6 doesnt alway calculate actuals?

When we update Units % complete for an activity, P6 calculates its Actual Units (as earned) for the first time but it stops updating Actual Units for any further Units % updates. Rather updating Units % complete further changes its At Complete Units.

1. Is there any way we can fix our At Complete Units?

2. Why P6 doesnt calculate cumulative Actual Units as per Units % complete of the activity, after first update?

 

Urgent responses shall be highly appreciated...

 

Regards,

Umer

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5 replies

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  1. 0
    Zoltan Palffy ·
    #1

    1. Is the activity type task

    1. Is the activity type task dependent or resource dependent ?

    2. What are you using for duration type ? 

    3. What are you using for % Complete type ?

    4. Under Calculations do you have Link Actual and actual this period units and costs checked

    5. Under Calculations do you have Replace Actual Units and Costs When duration % complete changes ?

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  2. 0
    Umer Arshad ·
    #2

    Dear Zoltan, Answers to ur

    Dear Zoltan, Answers to ur queries: 1. Is the activity type task dependent or resource dependent ? Task dependent 2. What are you using for duration type ? Fixed duration and Units 3. What are you using for % Complete type ? Units% 4. Under Calculations do you have Link Actual and actual this period units and costs checked - Yes, checked 5. Under Calculations do you have Recalulate Actual Units and Costs When duration % complete changes ? Unchecked
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  3. 0
    Zoltan Palffy ·
    #3

    #5 should be CHECKED

    #5 should be CHECKED

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  4. 0
    Umer Arshad ·
    #4

    Dear Zoltan,If we CHECK

    Dear Zoltan,

    If we CHECK "Recalculate Actual Units & Cost When Duration % Complete Changes" option, P6 creates another issue for me i.e.

    We put Units % complete manually as per Work Manhours based progress, however when we schedule the plan and data date is moved to a new date and remaining duration is entered, system recalculates Actual Units (Work Manhours) based on Remaining Duration of activity and consequently it changes our Units %. This is the issue if we keep above option CHECKED.

    Just try in your system by updating a labor units loaded activity using Units % complete. Put a % value for the first time and then change it to a higher value, you will see that from the second attempt, system will reduce the At Complete Labor units by keeping the Actual Units fixed to match the % value entered.

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  5. 0
    Zoltan Palffy ·
    #5

    is your setting in the

    is your setting in the projects directory for the calculations tab set to subtract actual from at completion ?

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