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P6 Calculation of actual units

5 replies [Last post]
Wed, 2016-03-02 07:19
Umer Arshad
User offline. Last seen 8 years 51 weeks ago. Offline
Joined: 12 Jan 2011
Posts: 15
Groups: GPC Qatar, Petro-Chem / Oil & Gas

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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Replies

Fri, 2016-03-04 12:10
#1
Zoltan Palffy
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Joined: 13 Jul 2009
Posts: 3089
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is your setting in the projects directory for the calculations tab set to subtract actual from at completion ?

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Fri, 2016-03-04 06:57
#2
Umer Arshad
User offline. Last seen 8 years 51 weeks ago. Offline
Joined: 12 Jan 2011
Posts: 15
Groups: GPC Qatar, Petro-Chem / Oil & Gas

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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Thu, 2016-03-03 11:59
#3
Zoltan Palffy
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#5 should be CHECKED

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Thu, 2016-03-03 07:37
#4
Umer Arshad
User offline. Last seen 8 years 51 weeks ago. Offline
Joined: 12 Jan 2011
Posts: 15
Groups: GPC Qatar, Petro-Chem / Oil & Gas
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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Wed, 2016-03-02 11:59
#5
Zoltan Palffy
User offline. Last seen 16 weeks 6 days ago. Offline
Joined: 13 Jul 2009
Posts: 3089
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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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