# reimbursements.prepare

Prepare one Wise reimbursement for approved claims belonging to the same member and currency. Preparation never sends funds.

`POST /api/v1/accounting/reimbursements.prepare`

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

MCP tool: `accounting_reimbursements_prepare`

## Fields

| Field | Type | Required | Notes |
| --- | --- | --- | --- |
| `claimIds` | array of strings (ID) | Yes | A list of record IDs. 1–100 items. |
| `returnReviewReason` | string |  | 10–1000 characters. |
| `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/accounting/reimbursements.prepare \
  -H "Authorization: Bearer $OATMILK_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "claimIds": [
    "9a8b7c6d-5e4f-4a3b-8c2d-1e0f9a8b7c6d"
  ]
}'
```

Reference page: https://app.getoatmilk.com/docs/api/reimbursements.prepare