# Task Properties {% hint style="info" %} A Task in Aphex is more than just a name and a date - this doc breaks down the core elements that make each Task functional, and who has the permission to edit them. {% endhint %} ## Task Properties *** Tasks properties are the details and metadata that can be assigned to Tasks.

Property	Description	Property Type	Mandatory
Activity ID	Unique identifier automatically assigned to every Task in the plan. Non-editable.	String	true
Assignee	Users who can help to edit and update a Task	Multi-Select	false
Blockers	Tick-off items that need to be completed before a task proceeds or finishes	Multi-Select	false
Calendars	Working and non-working days of a Task	Single Select	true
Comments	Thread of communication on the Task, with @mentions of other users.	Mentions	false
Documents	Documents that can be uploaded and attached to Tasks	File	false
Duration	Duration in working days. Minimum duration of 1 day.	Numeric	true
End Date	End date	Date	true
External ID	A custom unique identifier used to connect a task to an external plan, this commonly represents an Activity ID in a master schedule	String	false
Folder	Structure used to group and organise Tasks in the plan. Typically represents the Project WBS.	Single Select	false
Labour	Human resources required to deliver the Task	Multi-Select	false
Location	Visual map of an on-site location of the Task, or description of the off-site location	Single Select	false
Materials	Material resources required to deliver the Task	Multi-Select	false
Name	Name given to the Task	String	true
Notes	Additional notes that can be attached to Tasks	Free text	false
Owner	User responsible for the Task	Single Select	true
Package	Custom way of grouping related Tasks in the plan	Single Select	false
Parent	Parent Task of a Subtask	Single Select	false
Plant	Equipment and machinery required to deliver the Task	Multi-Select	false
Related Tasks	Predecessors and Successors. Relationships can exist between Tasks in the form of Logic Links	Multi-Select	false
Shift	Used to label if work is scheduled during the Day, Afternoon, Night or All.	Single Select	true
Start	Start date	Date	true
Subcontractor	Subcontractor responsible for delivering the Task	Single Select	false
Status	The overall state of a Task	Single Select	true
Tag	Custom labels used to group, filter, or track tasks across your Project	Multi-Select	false
Target Date	Milestone Target Date	Date	false
Work Area	Physical location of a Task on-site, marked-up on a Map	Mark Up	false

## Task Permissions ***

Permission	Owner / Admin	Assignee	No Task Role
Delete Task	true	true	false
Duplicate Task	true	true	false
Add Subtasks	true	false	false
Update Task Links	true	true	false
Update Task Dates, Duration, Calendar and Shift	true	true	false
Update Task Blockers	true	true	false
Update Task Tags	true	true	false
Update Task Subcontractor, Labour, Plant and Materials	true	true	false
Update Task Location and Work Area	true	true	false
Update Task Parent	true	true	false
Update Package	true	true	false
Update Folder	true	true	false
Update External ID	true	true	false
Mark as Non-Conflicting	true	false	false
Convert to Milestone	true	true	false
Update Target Date	true	true	false
Update Task Owner	true	true	false
Update Task Assignees	true	true	false
Add Task Comment	true	true	true
Update Task Notes	true	true	false
Update Task Documents	true	true	true
Update Task Status	true	true	false
Update Material Actuals	true	true	false
Record Progress Update	true	true	false