---
title: "Set up dunning letter mailing in the Customer ledger preferences"
description: "Go to the Customer ledger preferences (AR101000) window. Go to the Mailing settings tab. In the Default sources table, click to add a new row. Select DUNNINGLETTER. In the Default email account column, select the email account you want to use as your sender address. In the Report column, select the report you want to use to generate the dunning letter document, which will be sent as an attachment. In the Notification template column, select the DunningLetterNotification…"
lang: en
languages:
  en: https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/customer-ledger-preferences/set-up-dunning-letter-mailing-in-the-customer-ledger-preferences/index.md
lastmod: 2026-02-23
---

> Documentation index: https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/customer-ledger-preferences/llms.txt


# Set up dunning letter mailing in the Customer ledger preferences

Last modified February 23, 2026

> Go to the Customer ledger preferences (AR101000) window. Go to the Mailing settings tab. In the Default sources table, click to add a new row. Select DUNNINGLETTER. In the Default email account column, select the email account you want to use as your sender address. In the Report column, select the report you want to use to generate the dunning letter document, which will be sent as an attachment. In the Notification template column, select the DunningLetterNotification…


1. Go to 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.
1. Go to the **Mailing settings** tab.
1. In the **Default sources** table, click ![icon-add](https://docs.vismasoftware.no/media/visma-net-erp/icon-add.png) to add a new row.
1. Select **DUNNINGLETTER**.
1. In the **Default email account** column, select the email account you want to use as your sender address.
1. In the **Report** column, select the report you want to use to generate the dunning letter document, which will be sent as an attachment.
1. In the **Notification template** column, select the **DunningLetterNotification** template, which will be the template for the body of the email.
1. In the **Format** column, select the attachment format. If the format you specify here is different from a contact's format preferences, the system will use the contact's preferences.
1. Select the **Active** check box for the mailing.
1. In the **Default recipients** table, click ![icon-add](https://docs.vismasoftware.no/media/visma-net-erp/icon-add.png) to add a new row.
1. In the **Contact type** column, select **Invoicing**. In the [Customers (AR303000)](https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/customer-ledger-windows/customers-ar303000/index.md) window on the **Invoicing settings** tab, you can see the name of the dunning letter recipient in the **Attention** field.
1. Click ![icon-save](https://docs.vismasoftware.no/media/visma-net-erp/icon-save.png).

You can also configure dunning letter mailing for:
One customer, see: [Set up dunning letter mailing for a customer](https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/manage-customers/configure-mailing-settings-for-dunning-letters-for-a-customer/index.md).
Customer classes, see: [Set up dunning letter mailing for a customer class](https://docs.vismasoftware.no/visma-net-erp/help/customer-ledger/customer-classes/set-up-dunning-letter-mailing-for-a-customer-class/index.md).

<h2>Related pages</h2><h3>Concepts</h3>
<ul><li><a href="/visma-net-erp/help/customer-ledger/customer-ledger-preferences/about-customer-ledger-preferences/index.md">About Customer ledger preferences</a></li>
</ul><h3>Tasks</h3>
<ul><li><a href="/visma-net-erp/help/customer-ledger/customer-ledger-preferences/change-the-setting-for-automatic-posting-on-release/index.md">Change the setting for automatic posting on release</a></li><li><a href="/visma-net-erp/help/customer-ledger/customer-ledger-preferences/set-up-invoice-mailing-in-the-customer-ledger-preferences/index.md">Set up invoice mailing in the Customer ledger preferences</a></li><li><a href="/visma-net-erp/help/customer-ledger/customer-ledger-preferences/select-processing-options-for-overdue-charges/index.md">Select processing options for overdue charges</a></li><li><a href="/visma-net-erp/help/customer-ledger/customer-ledger-preferences/make-overdue-and-dunning-settings-in-the-customer-ledger-preferences/index.md">Make overdue and dunning settings in the Customer ledger preferences</a></li><li><a href="/visma-net-erp/help/customer-ledger/customer-ledger-preferences/apply-line-discount-to-item-price-or-extended-item-price/index.md">Apply line discount to Item price or Extended item price</a></li><li><a href="/visma-net-erp/help/customer-ledger/customer-ledger-preferences/add-a-payment-message-prefix/index.md">Add a payment message prefix</a></li><li><a href="/visma-net-erp/help/customer-ledger/manage-dunning-letters/set-up-a-dunning-letter-mailing/index.md">Set up a dunning letter mailing</a></li><li><a href="/visma-net-erp/help/customer-ledger/manage-dunning-letters/set-up-the-dunning-process/index.md">Set up the dunning process</a></li><li><a href="/visma-net-erp/help/customer-ledger/manage-commissions/configure-commissions/index.md">Configure commissions</a></li><li><a href="/visma-net-erp/help/customer-ledger/process-invoices/set-up-document-amount-rounding/index.md">Set up document amount rounding</a></li>
</ul><h3>Windows</h3>
<ul><li><a href="/visma-net-erp/help/customer-ledger/customer-ledger-windows/customer-ledger-preferences-ar101000/index.md">Customer ledger preferences (AR101000)</a></li>
</ul>


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