Asana - Update Task

↩ Part of the Asana integration.

Description

Updates the fields of an existing task (PUT /tasks/{gid}). You supply a JSON object with the fields to change; everything you do not mention stays as it was.

The most common use is closing a task once the automation finishes: {"completed": true}.

Configuration

Field	Type	Required	Description
`credentials_id`	credentials	Yes	Asana credential
`task_gid`	text	Yes	Task `gid`
`fields`	json	Yes	Fields to update, e.g. `{"completed":true}`

task_gid accepts dynamic variables. fields is parsed as JSON and sent as-is — dynamic variables are not resolved inside it. If the string is not valid JSON the node fails with a validation error.

Credentials

This module requires an Asana credential:

Field	Description
`access_token`	Personal Access Token from app.asana.com
`default_workspace_gid`	Optional fallback workspace

Output

data is the updated task as returned by Asana:

{
  "gid": "1209876543210987",
  "resource_type": "task",
  "name": "Follow-up: ACME Inc.",
  "completed": true,
  "completed_at": "2026-08-28T11:04:02.000Z",
  "due_on": "2026-09-15",
  "assignee": { "gid": "1201111111111111", "resource_type": "user" }
}

Along with it, _meta:

{ "moduleVersion": "1.0.0", "success": true, "gid": "1209876543210987", "totalMs": 298 }

Usage Example

Mark as complete

{
  "credentials_id": "asana_ops",
  "task_gid": "{{data.gid}}",
  "fields": { "completed": true }
}

Reassign and postpone

{
  "credentials_id": "asana_ops",
  "task_gid": "1209876543210987",
  "fields": {
    "assignee": "1201111111111111",
    "due_on": "2026-10-01"
  }
}

Rewrite the notes

{
  "credentials_id": "asana_ops",
  "task_gid": "1209876543210987",
  "fields": {
    "name": "Follow-up: ACME Inc. (closed)",
    "notes": "Quote sent on 28/08. Awaiting confirmation."
  }
}

Notes

notes is replaced, not appended. To add information without losing the previous text, use Asana: Add comment instead.
assignee takes a user gid or an email of a workspace member; null unassigns the task.
due_on is a date (YYYY-MM-DD); use due_at for a full timestamp.
Moving a task between projects is not a field update — it needs Asana’s addProject / removeProject endpoints, reachable with the HTTP node.
A 400 usually means an unknown field or a badly shaped value. Validation errors are not retried.

Asana: Get task — read the current values before updating.
Asana: List tasks — iterate a project and update each task.
Asana: Delete task — remove it instead of updating it.