Rescheduling WBS items with dependencies
If you change the planned start date or end date of a WBS item with a dependency, the start and end dates of successor WBS items will also change or dependencies will be removed.
 | If the Planned start date-time of a WBS item is changed, the successor in the dependency is rescheduled in all 'start-to-finish' and 'start-to-start' dependencies in which the changed WBS item is the predecessor. Similarly, if the Planned end date-time is changed, then the successor in the dependency is rescheduled in all 'finish-to-start' and 'finish-to-finish' dependencies in which the changed WBS item is the predecessor. |
Example 1:
WBS item 1 lasts two days longer than anticipated. Consequently, both WBS item 2 and WBS item 3 start two days later.
Example 2:
WBS item 1 is finished two days earlier. There is a five-day 'finish-to-start' (FS) dependency with WBS item 2 and a three-day FS dependency between WBS items 2 and 3. Due to the early completion of WBS item 1, both WBS item 2 and WBS item 3 start two days earlier.
Example 3:
WBS item 3 was planned on 01/13 but now gets a constraint start date (01/11). The planned start date changes from 01/13 to 01/11 and the end date from 01/15 to 01/13. This creates a planning conflict of the 'finish-to-start' dependency with predecessor WBS item 2. The FS dependency between WBS item 1 and WBS item 2 does not change. WBS item 4 is rescheduled, it starts two days earlier.
Note the following:
• If the planned start date time of a WBS item is changed, this change will be displayed in the Start date-time field of every linked order.
• If a main order is linked to a WBS item, the suborders that are not linked to a WBS item are rescheduled together with the main order. The suborders that are directly linked to a WBS item are rescheduled via the WBS item and not via the main order.
• The orders with the status Planned, Completed or Closed will not be rescheduled, but the WBS item to which they are linked will be rescheduled.
 | Time zones are not taken into account in project planning when calculating planned date-times. Example: WBS item 1 is linked to a property in the United Kingdom (UK) and WBS item 2 is linked to a property in the Netherlands. WBS item 2 can start when WBS item 1 has been completed. The planned start date-time of WBS item 2 becomes the planned end date-time of WBS item 1. If time zones were taken into account, the planned start date-time of WBS item 2 would be one hour later because the time zone of the Netherlands is GMT + 1. |