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why there is deviation in original duration if "Hide if empty" is unchecked ?

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adab azeez
User offline. Last seen 2 years 19 weeks ago. Offline
Joined: 19 Jul 2016
Posts: 50

Greetings to All.

I am making a schedule on P6 in which my project original duration appears to be very less. But whenever i check "hide if empty" in group and sort tab, It shows the project's correct original duration. Is there something wrong with my schedule ?

if its an error then how to fix it?

Thanks in advance 

Replies

David Kelly
User offline. Last seen 1 year 38 weeks ago. Offline
Joined: 19 Oct 2004
Posts: 630

This relates to the way durations are calcuated in summary bars, in particular which calendar to use to "back-calculate" the durations from the dates in the summary (which is how those durations are calculated)

If all of the activities within a single Group-and-Sort band share the same calendar, that calendar will be used to calculate the summary bar durations, other wise the so-called "Default" calendar will be used. 

By using "hide if empty" the number of Group-and-Sort bands will vary, and therefore the summary-duration rules will change.

The above is true from version 6.7 onwards.