`hours.amend`

Change one of your submitted time entries (date, minutes, description, and optionally the custom field values) with its expectedRevision, as long as nobody has reviewed it yet. It stays submitted, and a reviewer who already opened it is told it changed.

POST/api/v1/contractor/hours.amend

Permissions

contractor:readcontractor:write

Who can call it

contractor

Retries

Idempotency key required, with expectedRevision

MCP

contractor_hours_amend

Fields

idstring (ID)Required
The record's ID.
expectedRevisionintegerRequired
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
idempotencyKeystringRequired
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.
8–150 characters
datestring (date)Required
A date, as YYYY-MM-DD.
minutesintegerRequired
1 to 1440
descriptionstringRequired
A short description.
1–2000 characters
valuesmap
confirmDuplicateboolean
reasonstring
A short note saying why, kept in the record's history.
at most 1000 characters

curl https://app.getoatmilk.com/api/v1/contractor/hours.amend \
  -H "Authorization: Bearer $OATMILK_OAUTH_TOKEN" \
  -H "X-Accounting-Organization: $OATMILK_ORGANIZATION_ID" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "id": "9a8b7c6d-5e4f-4a3b-8c2d-1e0f9a8b7c6d",
  "expectedRevision": 3,
  "date": "2026-09-01",
  "minutes": 90,
  "description": "Synthetic example from the docs"
}'

const response = await fetch("https://app.getoatmilk.com/api/v1/contractor/hours.amend", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.OATMILK_OAUTH_TOKEN}`,
    "X-Accounting-Organization": process.env.OATMILK_ORGANIZATION_ID,
    "Content-Type": "application/json",
    "Idempotency-Key": crypto.randomUUID(),
  },
  body: JSON.stringify({
    "id": "9a8b7c6d-5e4f-4a3b-8c2d-1e0f9a8b7c6d",
    "expectedRevision": 3,
    "date": "2026-09-01",
    "minutes": 90,
    "description": "Synthetic example from the docs"
  }),
});
const { data, error } = await response.json();
if (!response.ok) throw new Error(`${error.code}: ${error.message}`);
console.log(data);

import os
import uuid

import requests

response = requests.post(
    "https://app.getoatmilk.com/api/v1/contractor/hours.amend",
    headers={
        "Authorization": f"Bearer {os.environ['OATMILK_OAUTH_TOKEN']}",
        "X-Accounting-Organization": os.environ["OATMILK_ORGANIZATION_ID"],
        "Idempotency-Key": str(uuid.uuid4()),
    },
    json={
        "id": "9a8b7c6d-5e4f-4a3b-8c2d-1e0f9a8b7c6d",
        "expectedRevision": 3,
        "date": "2026-09-01",
        "minutes": 90,
        "description": "Synthetic example from the docs",
    },
    timeout=30,
)
payload = response.json()
if not response.ok:
    raise RuntimeError(f"{payload['error']['code']}: {payload['error']['message']}")
print(payload["data"])

Response

{
  "data": { … }
}

Try it

Checks your input with this action’s real schema and answers like the API, with synthetic data. No key needed, and nothing changes.

Input

POST/api/v1/contractor/hours.amend

curl https://app.getoatmilk.com/api/v1/contractor/hours.amend \
  -H "Authorization: Bearer $OATMILK_OAUTH_TOKEN" \
  -H "X-Accounting-Organization: $OATMILK_ORGANIZATION_ID" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "id": "9a8b7c6d-5e4f-4a3b-8c2d-1e0f9a8b7c6d",
  "expectedRevision": 3,
  "date": "2026-09-01",
  "minutes": 90,
  "description": "Synthetic example from the docs"
}'

const response = await fetch("https://app.getoatmilk.com/api/v1/contractor/hours.amend", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.OATMILK_OAUTH_TOKEN}`,
    "X-Accounting-Organization": process.env.OATMILK_ORGANIZATION_ID,
    "Content-Type": "application/json",
    "Idempotency-Key": crypto.randomUUID(),
  },
  body: JSON.stringify({
    "id": "9a8b7c6d-5e4f-4a3b-8c2d-1e0f9a8b7c6d",
    "expectedRevision": 3,
    "date": "2026-09-01",
    "minutes": 90,
    "description": "Synthetic example from the docs"
  }),
});
const { data, error } = await response.json();
if (!response.ok) throw new Error(`${error.code}: ${error.message}`);
console.log(data);

import os
import uuid

import requests

response = requests.post(
    "https://app.getoatmilk.com/api/v1/contractor/hours.amend",
    headers={
        "Authorization": f"Bearer {os.environ['OATMILK_OAUTH_TOKEN']}",
        "X-Accounting-Organization": os.environ["OATMILK_ORGANIZATION_ID"],
        "Idempotency-Key": str(uuid.uuid4()),
    },
    json={
        "id": "9a8b7c6d-5e4f-4a3b-8c2d-1e0f9a8b7c6d",
        "expectedRevision": 3,
        "date": "2026-09-01",
        "minutes": 90,
        "description": "Synthetic example from the docs",
    },
    timeout=30,
)
payload = response.json()
if not response.ok:
    raise RuntimeError(f"{payload['error']['code']}: {payload['error']['message']}")
print(payload["data"])

Fields

Example

Try it