Meet the new BigPicture navigation
A faster, smarter, and more intuitive way to work is here. We’ve redesigned BigPicture navigation to give you a smoother experience and better access to what matters most.
→ Discover what’s new, explore key improvements, and review feature name updates on the New navigation page.
→ The rollout will happen gradually, and the previous navigation will be retired in September 2026.
Period warnings / Parent task conflicts
Period warnings have been renamed to Parent task conflicts as part of the new navigation rollout.
Both names refer to the same functionality. You may see either term depending on whether you’re using the previous navigation or the new navigation that is currently being rolled out in BigPicture.
Period warnings (old navigation)
Period warnings occur when a parent task cannot be recalculated due to a constraint, such as a blocking task (for example, a task in Locked mode), a non-working day, or when you use the manual period mode.
See the video about period warnings.
Showing Period Warnings
The warning is displayed as a yellow box with a dashed-line frame and shows the position of the parent tasks calculated based on its children.
Period warnings do NOT consider tasks without start and end dates (tasks without dates are ignored by period warnings).
Period warning considers tasks with one date, only considering the existing date.
For more details, see the table below.
Case | Outcome |
|---|---|
The child task has no dates, and the parent has no dates | No period warning |
The child task has no dates, but its parent has dates | No period warning |
The child task only has a start date, and this is within the parent dates | No period warning |
The child task only has a start date, and this is before the parent starts | The period warning is displayed |
The child task only has a start date, and this is after the parent ends | The period warning is displayed |
The child task only has an end date, and this is within the parent dates | No period warning |
The child task only has an end date, and this is before the parent starts | The period warning is displayed |
The child task only has an end date, and this is after the parent ends | The period warning is displayed |
The parent has only one date | No period warning |
The warning can only be displayed using the Gantt module. To show the warnings, click on View > Period warnings.
Rescheduling Tasks Manually
Parent tasks in manual mode can be manually rescheduled so the task period is calculated based on children tasks. To reschedule the task manually, click on the task to show the tasks' details and click Reschedule:
Bulk Rescheduling
Switch to one of the Auto period modes to fix all the warnings.
Parent task conflicts (new navigation)
Parent task conflicts occur when a parent task cannot be recalculated due to a constraint, such as a blocking task (for example, a task in locked mode), a non-working day, or when you use the manual period mode.
See the video about parent task conflicts.
Show parent task conflicts
The warning is displayed as a yellow box with a dashed-line frame and shows the position of the parent tasks calculated based on their children.
Parent task conflicts do NOT consider tasks without start and end dates (tasks without dates are ignored by parent task conflicts).
Parent task conflicts consider tasks with a single date, using only the existing date.
For more details, see the table below.
Case | Outcome |
|---|---|
The child task has no dates, and the parent has no dates. | No parent task conflict |
The child task has no dates, but its parent has dates. | No parent task conflict |
The child task only has a start date, and this is within the parent dates. | No parent task conflict |
The child task only has a start date, and this is before the parent starts. | The parent task conflict is displayed |
The child task only has a start date, and this is after the parent ends. | The parent task conflict is displayed |
The child task only has an end date, and this is within the parent dates. | No parent task conflict |
The child task only has an end date, and this is before the parent starts. | The parent task conflict is displayed |
The child task only has an end date, and this is after the parent ends. | The parent task conflict is displayed |
The parent has only one date. | No parent task conflict |
The warning can only be displayed using the Gantt module. To show the warnings:
Click Indicators > Parent task conflicts.
Reschedule tasks manually
Parent tasks in manual mode can be manually rescheduled so the task period is calculated based on child tasks.
To reschedule the task manually, click on the task to show the task’s details and click Reschedule.
Bulk rescheduling
Switch to one of the auto-scheduling modes to fix all the warnings.