# Subproduct templates

A subproduct template is always attached to a [product template](https://help.advatra.com/books/knowledge-base/page/product-templates "Product templates"). A product template can contain several subproduct templates.   
*(Product template: Hotel Schweizerhof Lucerne, subproduct template 1: double room, subproduct template 2: suite with lake view)*

A trip consists of several product templates with the desired subproduct templates.

## Product structure

Data for a product is always filled according to the same structure. This structure also immediately shows the relationships of all data among each other.

- A product template can contain a subproduct template, can have a main service and/or an additional service, and has different properties.
- A subproduct template is attached to a product template, can have a main service and/or an additional service, and has different properties.

[![image-1654693134921.png](https://help.advatra.com/uploads/images/gallery/2022-06/scaled-1680-/image-1654693134921.png)](https://help.advatra.com/uploads/images/gallery/2022-06/image-1654693134921.png)

## Create

<p class="callout info">Before you create a subproduct template template, you must have created a [product template](https://help.advatra.com/books/knowledge-base/page/product-templates "Product templates")</p>

Fill in the details:

**Supplier, Date, Mail, Destination** When creating a subproduct template, it takes over the information from the main product for: Supplier, date, mail and destination.

<p class="callout info">If you have not assigned a supplier to your product template, you can store different suppliers on your subproduct templates. Here, too, you can overwrite them as you wish.</p>

**Location** A Product template must be linked with a location.

<p class="callout info">If a product template has set one of them, the subproduct template can only use the next smaller entity. (Large &gt; Medium&gt; Small)</p>

Once you have created the subproduct template, you can add more information on the product overview page like:

- Descriptions
- [Notes](https://help.advatra.com/books/knowledge-base/page/product-notes "Product notes")
- Voucher texts
- [Opening times](https://help.advatra.com/books/knowledge-base/page/opening-times "Opening times")
- [Main services](https://help.advatra.com/books/knowledge-base/page/services "Services")
- [Additional services](https://help.advatra.com/books/knowledge-base/page/services "Services")
- [Markup and margin](https://help.advatra.com/books/knowledge-base/page/markup-and-margin "Markup and margin")
- [To-do templates](https://help.advatra.com/books/knowledge-base/page/to-do-templates "To-do templates")
- [Images](https://help.advatra.com/books/knowledge-base/page/images "Images")
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