Mark a workspace workflow state as default

POST/api/v2/workspaces/{slug}/workflows/{workflow_id}/states/{state_id}/mark-default/

Make this chain state the one new work items land in when no state is given. A workflow has at most one default, so the call clears the flag on the previous default. It also sets allow_issue_creation to true on the new default, because new work items must be creatable there.

This is a bodyless POST. The response is the updated chain entry.

Path Parameters

slug:requiredstring

The workspace slug. It appears in your Plane URLs. In https://app.plane.so/my-team/projects/, the slug is my-team.

workflow_id:requiredstring (uuid)

The catalog workflow whose chain you are working with.

state_id:requiredstring (uuid)

The catalog state id, not the chain entry's own id. A state that isn't in this workflow's chain returns 404.

Body Parameters

None. The endpoint takes no request body and ignores anything you send.

Response shaping

fields:optionalstring

Comma-separated list of fields to return. Unrequested keys are omitted from the response, not returned as null, so absent means "not requested" and null means "actually null". id always comes back whether or not you name it.

Pass all for every requestable field. An unknown name is a 400 that lists the valid set and suggests the closest match, so a typo can't silently cost you the saving.

Requestable here: allow_issue_creation, id, is_default, sequence, state_id, type, updated_at, workflow_id.

See Sparse fields.

Scopes

workspaces.workflows:write

Errors

Status	Code	Cause
400	invalid_request	The request body or a query parameter failed validation.
401	unauthorized	Missing or invalid credentials.
402	payment_required	Workflows isn't on your plan, or is switched off.
403	forbidden	Your role or token scope can't edit workspace workflows.
404	not_found	No such workflow in this workspace's catalog, or the state isn't in its chain.
406	not_acceptable	The Accept header asks for a representation the API can't produce.
409	governance_migration_in_progress	A governance migration is running in this workspace, so writes are paused. Retry after it finishes.
409	states_managed_at_project	The workspace doesn't have governance turned on. Use the project's workflows instead.
413	payload_too_large	The request body is over the size limit.
415	unsupported_media_type	The Content-Type isn't one this endpoint accepts.
429	rate_limited	Throttled. Honor the Retry-After header before retrying.

Mark a workspace workflow state as default

curl -X POST \
  "https://api.plane.so/api/v2/workspaces/my-team/workflows/9c1f0b3d-6d2e-4c9a-8b41-2f7e5a0d6c88/states/f960d3c2-8524-4a41-b8eb-055ce4be2a7f/mark-default/" \
  -H "X-Api-Key: $PLANE_API_KEY"

import requests

response = requests.post(
    "https://api.plane.so/api/v2/workspaces/my-team/workflows/9c1f0b3d-6d2e-4c9a-8b41-2f7e5a0d6c88/states/f960d3c2-8524-4a41-b8eb-055ce4be2a7f/mark-default/",
    headers={"X-Api-Key": "your-api-key"},
)
print(response.json())

const response = await fetch(
  "https://api.plane.so/api/v2/workspaces/my-team/workflows/9c1f0b3d-6d2e-4c9a-8b41-2f7e5a0d6c88/states/f960d3c2-8524-4a41-b8eb-055ce4be2a7f/mark-default/",
  {
    method: "POST",
    headers: {
      "X-Api-Key": "your-api-key",
    },
  },
);
const data = await response.json();

Response200

{
  "id": "0e6b4d82-1c9a-4f53-b7e2-9a3d5f8c6e10",
  "state_id": "f960d3c2-8524-4a41-b8eb-055ce4be2a7f",
  "workflow_id": "9c1f0b3d-6d2e-4c9a-8b41-2f7e5a0d6c88",
  "type": "transition",
  "is_default": true,
  "allow_issue_creation": true,
  "sequence": 20000.0,
  "updated_at": "2026-02-03T16:45:12.904117Z"
}