What this operation supports in Teamleader
Marks a task as completed by its ID.
Implementation details
This updates the task's status -- it doesn't delete the task record, so completed tasks remain in the account's task history.
Operational considerations
Using complete (rather than delete) for finished tasks preserves a record of what was done, which matters for accounts that track task history for reporting.
Use cases
Automatically complete tasks when dependent milestones are met in upstream systems.