Trigger · Tasks

Task assignee changed

Starts a run when workspace members are added to or removed from a task.

Attio events: task.created , task.updated

Inputs

No configuration.

Label	Key	Type	Always set	Notes
Task	`task`	Task	Yes
Task ID	`task_id`	Text	Yes
Triggered at	`triggered_at`	Timestamp	Yes
Updated by	`updated_by`	Actor	No	Present only when Attio sends an actor of a recognized type (workspace member, API token, system, app or workflow).
New assignees	`new_assignees`	List of actors	Yes
Previous assignees	`previous_assignees`	List of actors	Yes
Content	`content`	Text	Yes
Deadline	`deadline_at`	Date	No	Date only (YYYY-MM-DD). The time of day is dropped.
Linked record count	`linked_record_count`	Number	Yes
Linked records	`linked_records`	List of records	Yes	Iterable in a Loop block. Records whose object cannot be resolved to a slug are left out.

Compares the task’s current assignees with the stored prior list; starts a run only when the list differs.
Only assignees that are workspace members are tracked. Changes involving other assignee types are not detected.
Needs a stored prior value for the task. The first event for a task the app has never seen stores the value and does not start a run.

Triggers have no error branch. When something goes wrong inside a trigger, no run starts. See Troubleshooting.

Added and removed members are not output directly. Wire Previous assignees into Set A and New assignees into Set B of Compare members.

Notify a rep when a task is reassigned to them.

Example inputs
Event	Value
`task.updated`	Maya Chen reassigns "Prepare QBR" from herself to Priya Shah.

To get who was added and who was removed, wire Previous assignees into Set A and New assignees into Set B of Compare members.