# timesheet.fill

Fill one of your own empty current or past pay periods with draft time entries copied from the last period or your usual pattern. Dates, hours, and reusable form answers can be reviewed before submission.

`POST /api/v1/contractor/timesheet.fill`

Permissions: `contractor:read`, `contractor:write` · Roles: contractor · Idempotency key required · Send `expectedRevision`

MCP tool: `contractor_timesheet_fill`

## Fields

| Field | Type | Required | Notes |
| --- | --- | --- | --- |
| `periodId` | string (ID) | Yes | The ID of a contractor pay period. |
| `expectedRevision` | integer | Yes | The record's current revision, from the last time you read it. If someone changed the record since, the request is refused with a conflict so you can reload and check before trying again. at most 9007199254740991; greater than 0. |
| `source` | enum | Yes | Where the record came from. One of: `lastPeriod`, `usualPattern`. |
| `entries` | array of objects |  | 1–31 items. |
| `entries[].date` | string (date) | Yes | A date, as YYYY-MM-DD. |
| `entries[].minutes` | integer | Yes | 1 to 1440. |
| `entries[].description` | string | Yes | A short description. 1–2000 characters. |
| `entries[].values` | map | Yes |  |
| `idempotencyKey` | string | Yes | Any unique text you generate once per intended change, so a retried request only happens once. Send it as the Idempotency-Key header instead if you prefer; if you send both they must match. 8–200 characters. |

## Example request

```bash
curl https://app.getoatmilk.com/api/v1/contractor/timesheet.fill \
  -H "Authorization: Bearer $OATMILK_OAUTH_TOKEN" \
  -H "X-Accounting-Organization: $OATMILK_ORGANIZATION_ID" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "periodId": "4d5e6f7a-8b9c-4d0e-8f1a-2b3c4d5e6f7a",
  "expectedRevision": 3,
  "source": "lastPeriod"
}'
```

Reference page: https://app.getoatmilk.com/docs/api/contractor/timesheet.fill