# Payment reminder

## Introduction

Payment reminder is a document that gets sent after the payment due date of an initial invoice has missed.

The reminding process includes the sending of a payment reminder to restate issuers claim for settlement.

A reminder claims a payment for previously issued invoices or credit notes.

- The supplier as a creditor sends an electronic payment reminder.
- The customer as a debtor may act upon the payment reminder and pay the invoice, in which case the process ends.

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## Recommended formats

Below is a list of payment reminder formats recommended by us.

!!!success Note
All formats recommended by us are actively maintained, based on open standards, offer good supporting documentation and validation artefacts.
!!!

#### EHF Reminder 3.0

**E**lektronisk **H**andels**F**ormat (EHF) are format specifications developed by the Norwegian Agency for Public and Financial Management (DFØ) for the Norwegian market.

[!ref Specification](https://anskaffelser.dev/postaward/g3/spec/current/reminder-3.0/)
[!file text="Example files"](https://github.com/pagero/integration-resources/tree/main/example-files/payment-reminder/EHF%20Reminder%203.0)

#### OIOUBL Payment Reminder 2.01

OIOUBL is a customization of the international UBL 2.0 standard from OASIS (the Organization for the Advancement of Structured Information Standards).

[!ref Specification](http://www.oioubl.info/Classes/en/Reminder.html)
[!file text="Example files"](https://github.com/pagero/integration-resources/tree/main/example-files/payment-reminder/OIOUBL%20Payment%20Reminder%202.01)

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## Supported formats

Below is a list of payment reminder formats supported - but not necessarily recommended - by us.

#### EHF Reminder 1.1

[!ref Specification](https://anskaffelser.dev/postaward/g2/spec/current/reminder/)
[!file text="Example files"](https://github.com/pagero/integration-resources/tree/main/example-files/payment-reminder/EHF%20Reminder%201.1)

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## Customer specific formats

We can build support for any proprietary/closed source format you and your ERP system may require.

For more information, please see the [proprietary or closed source formats section](index.md#proprietary-or-closed-source).