---
title: "Configure a book calendar with week-based periods"
description: "You add a book calendar for each non-posting book you add to the system by using the Book calendars (FA206000) window."
lang: en
languages:
  en: https://docs.vismasoftware.no/visma-net-erp/help/fixed-assets/books-and-book-calendars/configure-a-book-calendar-with-week-based-periods/index.md
lastmod: 2026-02-23
---

> Documentation index: https://docs.vismasoftware.no/visma-net-erp/help/fixed-assets/books-and-book-calendars/llms.txt


# Configure a book calendar with week-based periods

Last modified February 23, 2026

> You add a book calendar for each non-posting book you add to the system by using the Book calendars (FA206000) window.


For more information: [Book calendars (FA206000)](https://docs.vismasoftware.no/visma-net-erp/help/fixed-assets/fixed-asset-windows/book-calendars-fa206000/index.md).

You add a book calendar for each non-posting book you add to the system by using the [Book calendars (FA206000)](https://docs.vismasoftware.no/visma-net-erp/help/fixed-assets/fixed-asset-windows/book-calendars-fa206000/index.md) window.
For each calendar, you have to define the
parameters of the financial year, including its starting and ending dates and its periods.

1. Go to the [Book calendars (FA206000)](https://docs.vismasoftware.no/visma-net-erp/help/fixed-assets/fixed-asset-windows/book-calendars-fa206000/index.md) window.
1. In the **Book** field, select the book for which you want to set up a book calendar.
1. Set up the first year of the book calendar:

    1. In the **Year starts on** field, select the date for the start of the book calendar year.
    1. If the start date of the book year belongs to the next financial year, select the **Belongs to next year** check box.

    The system then determines the first calendar year.
1. To define periods, in the **Period type** field, select **Week**.
1. In the **Periods start day of week** field, select the day of week on which periods will start.
1. Select the **Add adjustment period** check box if you want the system to generate an adjustment period.
1. Click ![icon-save](https://docs.vismasoftware.no/media/visma-net-erp/icon-save.png).

<h2>Related pages</h2><h3>Concepts</h3>
<ul><li><a href="/visma-net-erp/online-help/accounting-modules/fa/fa-books-and-book-calendars-con/index.md">/visma-net-erp/online-help/accounting-modules/fa/fa-books-and-book-calendars-con/</a></li>
</ul><h3>Tasks</h3>
<ul><li><a href="/visma-net-erp/help/fixed-assets/books-and-book-calendars/configure-a-book-calendar/index.md">Configure a book calendar</a></li><li><a href="/visma-net-erp/help/fixed-assets/books-and-book-calendars/shift-the-first-year-one-year-earlier/index.md">Shift the first year one year earlier</a></li>
</ul><h3>Windows</h3>
<ul><li><a href="/visma-net-erp/help/fixed-assets/fixed-asset-windows/book-calendars-fa206000/index.md">Book calendars (FA206000)</a></li>
</ul>


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