---
title: "Set up a dunning letter mailing"
description: "You use the default mailing with the DUNNINGLETTER identifier to send dunning letters via email."
lang: en
languages:
en: https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/manage-dunning-letters/set-up-a-dunning-letter-mailing/index.md
lastmod: 2026-02-23
---
> Documentation index: https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/manage-dunning-letters/llms.txt
# Set up a dunning letter mailing
Last modified February 23, 2026
> You use the default mailing with the DUNNINGLETTER identifier to send dunning letters via email.
You use the default mailing with the **DUNNINGLETTER** identifier to send dunning
letters via email.
To configure a mailing for a group of customers, you can create a
customer class or use an existing class.
In this case, the mailing configuration is
copied to each customer account of this customer class.
## Before you proceed
You should set up dunning process in the [Customer ledger preferences (AR101000)](https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/customer-ledger-windows/customer-ledger-preferences-ar101000/index.md) window.
Make sure that the text of the email template **DunningLetterNotification** (used
for the **DUNNINGLETTER** mailing) complies with your corporate policies.
To do
this, open the template by using the [Notification templates (SM204003)](https://docs.vismasoftware.no/visma-net-erp/help/email/email-windows/notification-templates-sm204003/index.md)
window, and edit the template, if required.
The look and feel of the attachment is
defined with the [Dunning letter (AR6611000) report](https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/customer-ledger-reports/dunning-letter-ar661000/index.md).
1. Go to the [Customer classes (AR201000)](https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/customer-ledger-windows/customer-classes-ar201000/index.md) window.
1. In the **Class ID** field, select the customer class you want to configure the mailing for.
1. On the **Mailing settings** tab, in the **Mailings** table, do the following:
The table may already have a row for the **DUNNINGLETTER** mailing with default settings. In this case, check that it is configured as described in the following substeps.
1. Add a row. In the **Mailing ID** column of the new row, select the **DUNNINGLETTER** mailing.
1. In the **Branch** column of the row, select the branch on behalf of which the emails for the mailing will be sent. Leave the **Branch** column blank to use the same mailing settings for all branches.
1. In the **Email account** column, select the email account the mailing is to be sent from.
1. In the **Report** column, select the report to be used for generating the dunning letter document, which will be sent as an attachment.
1. In the **Notification template** column, select the **DunningLetterNotification** notification template, which will be used to compose the body of the email.
1. In the **Format** column, select the attachment format. If the format specified in this mailing does not match the format preferences of a contact, the attachment will be sent in the format preferred by the contact.
1. Select the **Active** check box for the mailing.
1. In the **Recipients** table, add the types of contacts to receive dunning letters.
The system will automatically load the actual email address that corresponds to the added contact type when a new customer account of this customer class is created. Select the attachment format preferred by the contact. Make sure the contact is active, and specify whether the contact should receive a blind carbon copy of the emails that will be generated for this mailing.
1. In the window toolbar, click .
You can adjust these mailing settings to serve the preferences of a particular customer by using the **Mailing settings** tab of the [Customers (AR303000)](https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/customer-ledger-windows/customers-ar303000/index.md) window.
After you complete these steps, you can prepare dunning letters and email them to inform your customers of invoices that are past due by using the [Prepare dunning letters (AR521000)](https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/customer-ledger-windows/prepare-dunning-letters-ar521000/index.md) and [Print/release dunning letters (AR522000)](https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/customer-ledger-windows/print-release-dunning-letters-ar522000/index.md) windows.
Related pages
Concepts
Tasks
Windows
---
[View this page](https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/manage-dunning-letters/set-up-a-dunning-letter-mailing/)