---
title: "Send a payment reminder"
method: POST
path: "/invoices/{invoice_id}/reminder"
tags: ["Invoicing"]
---

# Send a payment reminder

`POST /invoices/{invoice_id}/reminder`

## Request

- Base URL: `https://api.app.lastaccountingcompany.com/portal`
- URL: `https://api.app.lastaccountingcompany.com/portal/invoices/{invoice_id}/reminder`
- Auth: HTTP bearer
- TypeScript: <https://skmtc.dev/lastaccountingcompany/apis/lac-customer-api/docs/invoices/:invoice_id/reminder/post.ts> (a function with typed inputs; its response is checked against the schema)

Requests a payment reminder for an unpaid invoice. Accepted asynchronously. Pass `idempotency_key` to make retries safe. Requires a write-scoped key.

## Path parameters

- `invoice_id` string, required

## Request body

- object
  - `customer_id` string: Target company. Optional for API keys.
  - `note` string: Optional note to include with the reminder.
  - `idempotency_key` string: Client-chosen key to deduplicate retries.

## Response `202`

Reminder request accepted.

- EventAccepted: Acknowledgement of an asynchronously dispatched request.
  - `event_id` string: Identifier of the dispatched event.

## Other responses

- `401`: Missing or invalid bearer token.
- `403`: Insufficient scope or role — e.g. a read-scoped key on a mutating method, or an API key on an admin/approver-only endpoint.

---

[API](https://skmtc.dev/lastaccountingcompany/apis/lac-customer-api.md) - [All operations](https://skmtc.dev/lastaccountingcompany/apis/lac-customer-api/llms.txt) - [OpenAPI document](https://skmtc.dev/lastaccountingcompany/apis/lac-customer-api/revisions/52e277b4f031?raw)