Calendar groupings
Calendar groupings allow you to define custom fields that group multiple scheduling periods into named categories, such as Week, Month, or Operational Phase. Groupings can be used to apply logic across a range of periods.
|
Week |
Period Number |
Period Name |
Period Start |
Period End |
|---|---|---|---|---|
|
Week1 |
1 |
Sunday |
02/08/2026 12:00 AM |
03/08/2026 12:00 AM |
|
Week1 |
2 |
Monday |
03/08/2026 12:00 AM |
04/08/2026 12:00 AM |
|
Week1 |
3 |
Tuesday |
04/08/2026 12:00 AM |
05/08/2026 12:00 AM |
|
Week1 |
4 |
Wednesday |
05/08/2026 12:00 AM |
06/08/2026 12:00 AM |
|
Week1 |
5 |
Thursday |
06/08/2026 12:00 AM |
07/08/2026 12:00 AM |
|
Week1 |
6 |
Friday |
07/08/2026 12:00 AM |
08/08/2026 12:00 AM |
|
Week1 |
7 |
Saturday |
08/08/2026 12:00 AM |
09/08/2026 12:00 AM |
|
Week2 |
8 |
Sunday |
09/08/2026 12:00 AM |
10/08/2026 12:00 AM |
|
Week2 |
9 |
Monday |
10/08/2026 12:00 AM |
11/08/2026 12:00 AM |
|
Week2 |
10 |
Tuesday |
11/08/2026 12:00 AM |
12/08/2026 12:00 AM |
A calendar that groups periods by the week they belong to
Define grouping field
A grouping field is a custom calendar column that assigns multiple periods to a shared label or category. For example, using a Week grouping, periods 1-7 could be grouped under Week1, and periods 8-14 could be grouped under Week2.
You define grouping fields in the calendar editor. In the Group Name property, enter a name for the grouping field, then click Add. This creates a new column in the calendar, to the left of the other fields.
Add grouping column to calendar CSV
The initial value for each period in a new grouping column defaults to the column name. To customise the grouping value for each period, you define the grouping field values in the CSV and then reimport the file.
In the calendar CSV file, add the grouping column to the left of the default columns (Period Name, Period Start). For each period, enter the appropriate grouping value (e.g., Week1, PhaseA…).
|
Week |
Period Name |
Period Start |
|---|---|---|
|
Week1 |
Sunday |
02/08/2026 12:00 AM |
|
Week1 |
Monday |
03/08/2026 12:00 AM |
|
Week1 |
Tuesday |
04/08/2026 12:00 AM |
|
Week1 |
Wednesday |
05/08/2026 12:00 AM |
|
Week1 |
Thursday |
06/08/2026 12:00 AM |
|
Week1 |
Friday |
07/08/2026 12:00 AM |
|
Week1 |
Saturday |
08/08/2026 12:00 AM |
|
Week2 |
Sunday |
09/08/2026 12:00 AM |
|
Week2 |
Monday |
10/08/2026 12:00 AM |
|
Week2 |
Tuesday |
11/08/2026 12:00 AM |
|
Week2 |
End |
12/08/2026 12:00 AM |
Import the updated calendar
Reimport the CSV into the software. The software matches the grouping field defined in the calendar with the column in the CSV and accordingly applies the values to the periods.
No field grouping detected
If you encounter the error:
Field index must be included in [0, FieldCount[.
It likely means the calendar grouping you've selected in the software doesn't match any column in the imported CSV file. Make sure your CSV includes the calendar grouping column you've selected, or remove the grouping from the software settings before importing.
Where to use calendar groupings
Groupings can be used to apply logic across a range of periods.
In Client > Export Activity Areas, you can group scheduled slices by a shared calendar value (e.g., Week1, Month2). Each exported object represents a group of slices scheduled within the calendar value.