# Change a policy's amounts, counts, approval rules, purpose or dates

`PATCH /spend-policies/{id}` · Skerry · Limits, agents and approvals

Change a policy's amounts, counts, approval rules, purpose or dates. Who it binds and its allow-lists cannot change. Changing the rule detaches the consent evidence recorded for it. Changing `scope` changes the unit of every amount, so each amount limit the policy has must be sent again in the same request.

- Scope: policies:write
- Moves money: no
- Idempotency: none
- Untrusted: name, purpose, approved_by, summary, revoked_reason

## Parameters

- `id` (path, required), string

## Request body

`application/json`

```json
{
  "type": "object"
}
```

## Responses

- `200`: Success.
- `202`: requires_approval — Not an error: the operation is held for a person. The body names the approval.
- `400`: price_below_minimum — The price is below the smallest single payment for a method (`detail.method`, `detail.minimum`), or has a part of a cent. Set `credit_only`, raise the price, or drop the method.
- `401`: dpop_invalid — The token is bound to a key and the DPoP proof was missing, wrong for this request, or already used.
- `402`: payment_failed — The payer's bank or card refused. `detail.reason` says why in plain terms.
- `403`: agent_payment_over_max — The merchant asks for more than `max_amount`. Nothing was signed. `detail.asked_minor` is the lowest price asked, in US cents.
- `404`: not_found — No such object in this project — including one that belongs to somebody else.
- `409`: token_not_issued — A delegated payment token could not be issued ready to use, for instance because the payer would have to act. Nothing was sent to the merchant.
- `429`: too_many_waiters — This key already has as many requests waiting (`?wait=`) as it may. Let one finish, or read without wait.
- `500`: internal_error — Ours. Quote the `request_id` and we can find the call.
- `502`: platform_error — A provider failed. Safe to retry with the same Idempotency-Key.
- `503`: oauth_unavailable — The authorisation server's keys could not be read, so tokens cannot be checked. API keys still work.

## Example

```sh
curl -X PATCH 'https://api.skerry.xyz/spend-policies/{id}' \
  -H 'Authorization: Bearer $KEY' \
  -H 'Content-Type: application/json' \
  -d '"{ max_amount?, daily_max?, monthly_max?, max_count?, count_window?, approval_above?, second_approval_above?, approvers_required?, approval_evidence?, approval_expires_minutes?, checkout_above?, purpose?, scope?, consent_required?, valid_from?, expires_at?, name? }"'
```