New required fields added in schema MessageTemplateResponse: [is_available_for_all_inboxes inbox_ids _links id name subject body attachments]

What changed

New required fields added in schema MessageTemplateResponse: [is_available_for_all_inboxes inbox_ids _links id name subject body attachments] Affected surface: schema MessageTemplateResponse. Root cause: schema `MessageTemplateResponse`. Detected at Fri, 29 Aug 2025 15:26:42 UTC UTC.

Diff

{
  "added_required": [
    "is_available_for_all_inboxes",
    "inbox_ids",
    "_links",
    "id",
    "name",
    "subject",
    "body",
    "attachments"
  ],
  "schema_path": "schema MessageTemplateResponse"
}

Likely impact

Existing integrations relying on this surface will fail or behave incorrectly. Treat this as a release-blocker until the recommended action below is applied.

Recommended action

Add the new required field to all request payloads or arguments. Requests omitting it will be rejected.