Update a project objective
Projects module
PATCH/project-objectives/{id}projectObjectives.update
A measurable objective recorded at gate 1 (canon criterion G1.OBJECTIVES_STATED): one target per metric and project, which gate 8 measures against. Once gate 1 is passed only a gate approver (projects.gate.transition) sets, changes or withdraws one; every change is in the audit ledger. Updates the fields sent; omitted fields are unchanged. Requires `If-Match` with the current `ETag`: a stale tag returns 412 and a missing tag returns 428.
- Requires the capability projects.gate.evidence.write.
- OAuth scopes: projects.
- Send If-Match with the ETag you read. A stale tag returns 412; a missing tag returns 428.
- Error statuses: 400, 401, 404, 412, 422, 428, 429. Errors are RFC 9457 problem details.
Path and query parameters
| Field | Type | Required | Description |
|---|---|---|---|
| id | string (uuid) | Yes | Identifier of the project objective. |
Request body: ProjectObjectiveUpdate
| Field | Type | Required | Description |
|---|---|---|---|
| direction | "At Least" | "At Most" | No | Met by reaching the target (At Least) or by staying within it (At Most). |
| target_value | number | No | Target figure, in unit_code. |
| unit_code | string | No | Unit of the target, of the metric's dimension.Constraints: pattern ^[a-z][a-z0-9_]*$ |
| note | string | null | No | Note.Constraints: length 1 to 2000 |
{
"direction": "At Most",
"target_value": 2,
"unit_code": "kg",
"note": "Two roll-off containers."
}Response 200: ProjectObjective
| Field | Type | Required | Description |
|---|---|---|---|
| id | string (uuid) | Yes | Identifier of the project objective. |
| org_id | string (uuid) | Yes | Identifier of the owning organization, derived from the parent row and never accepted from the caller. |
| created_at | string (date-time) | Yes | When the row was created. |
| created_by | string (uuid) | null | Yes | Identifier of the person who created the row. |
| updated_at | string (date-time) | Yes | When the row was last updated. |
| updated_by | string (uuid) | null | Yes | Identifier of the person who last updated the row. |
| project_id | string (uuid) | Yes | Identifier of the project. |
| metric_code | string | Yes | Metric (app.measurement_metrics).Constraints: pattern ^[a-z][a-z0-9_]*$ |
| direction | "At Least" | "At Most" | Yes | Met by reaching the target (At Least) or by staying within it (At Most). |
| target_value | number | Yes | Target figure, in unit_code. |
| unit_code | string | Yes | Unit of the target, of the metric's dimension.Constraints: pattern ^[a-z][a-z0-9_]*$ |
| note | string | null | Yes | Note.Constraints: length 1 to 2000 |
{
"id": "0192f1e2-7c3a-7b4d-9e8f-1a2b3c4d5e6f",
"org_id": "0192f1e2-7c3a-7b4d-9e8f-1a2b3c4d5e6f",
"created_at": "2026-10-08T14:30:00Z",
"created_by": "0192f1e2-7c3a-7b4d-9e8f-1a2b3c4d5e6f",
"updated_at": "2026-10-08T14:30:00Z",
"updated_by": "0192f1e2-7c3a-7b4d-9e8f-1a2b3c4d5e6f",
"project_id": "0192f1e2-7c3a-7b4d-9e8f-1a2b3c4d5e6f",
"metric_code": "waste_generated",
"direction": "At Most",
"target_value": 2,
"unit_code": "kg",
"note": "Two roll-off containers."
}Code samples
curl -X PATCH "$XOS_BASE_URL/project-objectives/0192f1e2-7c3a-7b4d-9e8f-1a2b3c4d5e6f" \
-H "Authorization: Bearer $XOS_API_KEY" \
-H 'If-Match: W/"etag-from-your-last-read"' \
-H "Content-Type: application/json" \
-d '{"direction":"At Most","target_value":2,"unit_code":"kg","note":"Two roll-off containers."}'const { data, etag } = await xos.projectObjectives.update("0192f1e2-7c3a-7b4d-9e8f-1a2b3c4d5e6f", {
"direction": "At Most",
"target_value": 2,
"unit_code": "kg",
"note": "Two roll-off containers."
}, { ifMatch: etag });response = xos.project_objectives.update("0192f1e2-7c3a-7b4d-9e8f-1a2b3c4d5e6f", {"direction": "At Most", "target_value": 2, "unit_code": "kg", "note": "Two roll-off containers."}, if_match=etag)xos project-objectives update 0192f1e2-7c3a-7b4d-9e8f-1a2b3c4d5e6f --data '{"direction":"At Most","target_value":2,"unit_code":"kg","note":"Two roll-off containers."}' --if-match auto