# contractorOps.settings.update

Update contractor operations preferences with idempotencyKey and optional expectedRevision. Only supplied settings change.

`POST /api/v1/accounting/contractorOps.settings.update`

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

MCP tool: `accounting_contractor_ops_settings_update`

## Fields

| Field | Type | Required | Notes |
| --- | --- | --- | --- |
| `expectedRevision` | integer |  | 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. |
| `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. |
| `settings` | object | Yes | No other fields. |
| `settings.remindersEnabled` | boolean |  |  |
| `settings.hoursReminderLeadDays` | integer |  | 0 to 14. |
| `settings.lateReminderEveryDays` | integer |  | 1 to 14. |
| `settings.lateReminderMax` | integer |  | 0 to 10. |
| `settings.approvalReminderEveryDays` | integer |  | 1 to 14. |
| `settings.approvalReminderMax` | integer |  | 0 to 10. |
| `settings.profileReminderMax` | integer |  | 0 to 12. |
| `settings.approverEmails` | array of strings (email) |  | at most 20 items; each at most 320 characters. |
| `settings.autoPreparePayouts` | boolean |  |  |
| `settings.defaultCadence` | object |  |  |
| `settings.defaultCadence.kind` | "weekly" | Yes | Which kind of record or job this is. |
| `settings.defaultCadence.weekStartsOn` | integer |  | 0 to 6. Default `1`. |
| `settings.defaultCadence.dueDaysAfterPeriod` | integer |  | 0 to 30. Default `1`. |
| `settings.defaultCadence.payWithinBusinessDays` | integer |  | 0 to 30. Default `5`. |
| `settings.defaultCadence.kind` | "biweekly" | Yes | Which kind of record or job this is. |
| `settings.defaultCadence.anchorDate` | string (date) | Yes | A date, as YYYY-MM-DD. |
| `settings.defaultCadence.dueDaysAfterPeriod` | integer |  | 0 to 30. Default `1`. |
| `settings.defaultCadence.payWithinBusinessDays` | integer |  | 0 to 30. Default `5`. |
| `settings.defaultCadence.kind` | "semi_monthly" | Yes | Which kind of record or job this is. |
| `settings.defaultCadence.days` | array of values | Yes |  |
| `settings.defaultCadence.dueDaysAfterPeriod` | integer |  | 0 to 30. Default `1`. |
| `settings.defaultCadence.payWithinBusinessDays` | integer |  | 0 to 30. Default `5`. |
| `settings.defaultCadence.kind` | "monthly" | Yes | Which kind of record or job this is. |
| `settings.defaultCadence.day` | integer |  | 1 to 28. Default `1`. |
| `settings.defaultCadence.dueDaysAfterPeriod` | integer |  | 0 to 30. Default `1`. |
| `settings.defaultCadence.payWithinBusinessDays` | integer |  | 0 to 30. Default `5`. |
| `settings.defaultCadence.kind` | "manual" | Yes | Which kind of record or job this is. |
| `settings.timezone` | string |  | 3–60 characters. |
| `settings.wiseSourceCurrency` | string or null |  |  |
| `settings.wiseTransferPurpose` | string or null |  |  |
| `settings.wiseSourceOfFunds` | string or null |  |  |
| `settings.paymentReferencePrefix` | string |  | Matches ^[A-Za-z0-9 -]{0,10}$. |
| `settings.payOnlyWhenAllApproved` | boolean |  |  |
| `settings.autoApprove` | object |  | No other fields. |
| `settings.autoApprove.enabled` | boolean | Yes |  |
| `settings.autoApprove.maxEntryHours` | number or null | Yes |  |
| `settings.autoApprove.maxWeeklyHours` | number or null | Yes |  |
| `settings.autoApprove.afterApprovedPeriods` | integer | Yes | 0 to 24. |
| `settings.paydayHeadsUpDays` | integer |  | 0 to 14. |
| `settings.paymentBufferDays` | integer |  | 0 to 30. |
| `settings.hoursNotionDatabase` | object or null |  |  |
| `settings.hoursNotionDatabase.id` | string | Yes | The record's ID. 1–200 characters. |
| `settings.hoursNotionDatabase.title` | string or null | Yes | A short title. |
| `settings.hoursNotionSync` | boolean |  |  |

## Example request

```bash
curl https://app.getoatmilk.com/api/v1/accounting/contractorOps.settings.update \
  -H "Authorization: Bearer $OATMILK_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "settings": {}
}'
```

Reference page: https://app.getoatmilk.com/docs/api/contractorOps.settings.update