---
title: "Product Groups | GTX Reporting"
slug: "product-groups"
description: "Learn about Product Groups in Marlin GTX trusted automotive software by Megabus."
updated: 2025-11-14T02:41:28Z
published: 2025-11-14T02:41:28Z
canonical: "help.megabus.com.au/product-groups"
---
> ## Documentation Index
> Fetch the complete documentation index at: https://help.megabus.com.au/llms.txt
> Use this file to discover all available pages before exploring further.
# Product Groups
**{{variable.GTX Bold}}** enables products to be categorised into product groups for classification, reporting and pricing.
**Product Reporting Levels:**
* **Product Departments:** Highest-level summary of stock sales
* **Product Supergroups:** Broad groupings such as manufacturer
* **Product Groups:** Categories of products within a department
* **Individual Products:** Detailed reporting for a single product
[Product groups](/gtx/docs/product-groups#product-groups) define how products are grouped for reporting and inventory.
[Product supergroups](/gtx/docs/product-groups#product-supergroups) sit above product groups and provide broader categorisation.
Each product group belongs to a **[department](/gtx/docs/departments)** and can include defaults for reporting and pricing.
>[Markup Sets](/gtx/docs/price-markups#markup-sets) can be assigned at the product group level for consistent pricing rules.
:::(Info) (Note)
Product groups are mandatory and **must be assigned to every product**.
:::
## Product Supergroups
Product supergroups define higher-level categories that product groups belong to.
They are typically aligned to business areas such as **tyres**, **accessories**, **labour charges** or **other sales categories**.
Each product group must be assigned to a product supergroup.
Product supergroups can be viewed and edited by selecting **System > System Files > Products > Product Supergroups** from the menu bar.
### Adding Product Supergroups
#### System > System Files > Products > Product Supergroups
New product supergroups can be added by clicking on the **{{glossary.Add}}** button at the top of the Supergroup Maintenance window.
The **Add Supergroup** window will open.
**In the Details tab:**
* Enter a unique **Code** and **Name**
* Select a **[Department](/gtx/docs/departments)**
* (Optional) Select a **Markup Set**
* Click **{{glossary.Save}}** (top of module)
:::(Warning) (Warning)
Product supergroup codes cannot be changed once they are added.
:::
## Assigning Product Groups to Supergroups
#### System > System Files > Products > Product Groups
Each product group must be linked to a product supergroup.
Product groups can be assigned to a supergroup using the **Product Supergroup** picker in the [product group's Details tab](/gtx/docs/product-groups-1#adding-product-groups).
:::(Info) (Note)
Supergroups must exist before product groups can be added.
:::
## Product Groups
Product groups can be viewed and edited by selecting **System > System Files > Products > Product Groups** from the menu bar.
### Adding Product Groups
#### System > System Files > Products > Product Groups
New product groups can be added by clicking on the **{{glossary.Add}}** button at the top of the Product Groups window.
The **Add Product Group** window will open.
**In the Details tab:**
* Enter a unique **Code** and **Name**
* Select a **Supergroup**
* (Optional) Select a **Markup Set**
* (Optional) Select a **Gross Profit Cap Level**
* Click **{{glossary.Save}}** (top of module)
:::(Warning) (Warning)
Product group codes cannot be changed once they are added.
:::
## Assigning Products to Product Groups
#### Products > Add Product
Products can be assigned to product groups using the **Product Group** picker in the Details tab of their [Product Maintenance](/gtx/docs/products-maintenance) file.
**To assign a product group:**
* Open the product in **{{glossary.Edit}}** mode
* Use the **Product Group** lookup to select the group
* Complete all other required details
* Click **{{glossary.Save}}** (top of module)
:::(Warning) (Tip)
Assigning the **correct product group** ensures that pricing, reporting and categorisation are consistent across the program.
:::