| Solution ID: prim32289 |
| Assigning 5 or more resources to an activity throws 1 of the resource calculations off. |
| Status: Reviewed |
| Version(s): 4.0, 4.1 |
| Fact: | Duration Type is set to Fixed Units. |
| Fact: | The setting Edit, User Preferences, Calculations is set to Recalculate.
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| Problem: | Assigning 5 or more resources to an activity throws 1 of the resource calculations off. |
| Cause: | This is a rounding issue. Usually occurs when the Units entered for the resource are an uneven number. For example: If the activity is 5 days and the resources have a Units/Time of 7.5, the Units will equal 37.5 when one resource is assigned. As more resources keep getting added, Project Management takes the 37.5 and divides by the number of resources on the activity. Then it needs to change the duration because Units/ (Units/Time) = Duration. When 5 resources are added it comes up with 37.5 / 5 = 7.5 Units. Then 7.5 Units / 7.5 U/T = 1. However, for some reason, 1 resource is getting 7.51 Units. When the rounding issue occurs and the budget is 7.51 for one of the resources, the resource finish changes to 8:01AM, this changes the activity finish to the same time. When the duration is changed on the activity, the activity finish is pushed out. The logic for driving resources is for any resource that has the same finish as the activity, the duration will be changed and so will the resource finish date. |
| Fix: | This known problem in Primavera Project Management 4.1 has been corrected in Primavera Project Management 5.0. Workaround: Go to C:\Program Files\Primavera\Project Management folder. Open the PM.ini file. Look for the following setting: [Options] Make sure it is set to 4 and not 2. When the change is made, save the file and re-open Project Management. |
