# Set scenario account sheet overrides

`PATCH` `/api/v1/carve/projects/{project_id}/scenarios/{scenario_id}/account-sheet/overrides`

Override or clear the assigned result and rationale for one or more rows
in an executed scenario account sheet. All changes are atomic: if any
row_key is unknown, the entire request is rejected and no override changes
are written.

## Path parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| project_id | string | yes | — |
| scenario_id | string | yes | — |

## Request body

`application/json`

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| overrides | array[object] | yes | — |
| overrides.row_key | integer | yes | gw_row_number of the row to override |
| overrides.result | string | yes | New result value. Send null to clear this row's override. Empty string is rejected — use null to clear. |
| overrides.rationale | string | no | Optional rationale. Ignored when result is null. Auto-generated if omitted or null and result is a string. |

## Response

`200 OK` — `application/json`

| Field | Type | Description |
|-------|------|-------------|
| project_id | string | — |
| scenario_id | string | — |
| changes | array[object] | — |
| changes.row_key | integer | — |
| changes.prior_result | string | — |
| changes.prior_rationale | string | — |
| changes.result | string | — |
| changes.rationale | string | — |

## Errors

| Status | Description |
|--------|-------------|
| 400 | Bad Request |
| 403 | Forbidden |
| 404 | Not Found |
| 409 | Conflict |
| 502 | Bad Gateway |