Calendar Fields allow users to create custom calendar fields to hold period-based data. The calendar fields are exposed in XECUTE for Process node production rates and stack/reclaim rates for stockpiles and stack rates for dumps. See also Data Feed In > Calendar Field. Calendar fields enable support for Fixed Plant Maintenance events.
To create new calendar fields open the Calendar Fields page in the Site Management page click the Calendar icon. 
In the grid, fill in the cells as shown in the table, then click Save. The Calendar field will now be available in the Expression Builder for Process node production rates and stack/reclaim rates for stockpiles and stack rates for dumps.
The Calendar Field is also listed in Material Flow diagram > Calendar Override Overview to allow for setting of manual period overrides.
| Field | Description | 
|---|---|
| Code | The field name. It has same naming restrictions as Principal Fields. | 
| Description | Text description of the calendar field. | 
| Category | The grouping category as used in expression builder. | 
| Units | Field units used for display purposes. | 
| Aggregation Type | How the values are aggregated; options are Sum or Weight .Average. The weighting field can be set to period duration (for time-based fields) or other calendar fields. | 
| Weighting Field | The weighting field if Weight Average is selected. | 
| Default Value Expression | An expression to set the default value. |