This property defines the relative priority for a calendar component.
IANA and non-standard property parameters can be specified on this property.
This priority is specified as an integer in the range 0 to 9. A value of 0 specifies an undefined priority. A value of 1 is the highest priority. A value of 2 is the second highest priority. Subsequent numbers specify a decreasing ordinal priority. A value of 9 is the lowest priority.
A CUA with a three-level priority scheme of "HIGH", "MEDIUM", and "LOW" is mapped into this property such that a property value in the range of 1 to 4 specifies "HIGH" priority. A value of 5 is the normal or "MEDIUM" priority. A value in the range of 6 to 9 is "LOW" priority.
A CUA with a priority schema of "A1", "A2", "A3", "B1", "B2", ..., "C3" is mapped into this property such that a property value of 1 specifies "A1", a property value of 2 specifies "A2", a property value of 3 specifies "A3", and so forth up to a property value of 9 specifies "C3".
Other integer values are reserved for future use.
Within a "VEVENT" calendar component, this property specifies a priority for the event. This property may be useful when more than one event is scheduled for a given time period.
Within a "VTODO" calendar component, this property specified a priority for the to-do. This property is useful in prioritizing multiple action items for a given time period.
This property is defined by the following notation:
priority = "PRIORITY" prioparam ":" priovalue CRLF ;Default is zero (i.e., undefined).
prioparam = *(";" other-param)
priovalue = integer ;Must be in the range [0..9] ; All other values are reserved for future use.
The following is an example of a property with the highest priority:
The following is an example of a property with a next highest priority:
The following is an example of a property with no priority. This is equivalent to not specifying the "PRIORITY" property:
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