Marlin GTX enables the creation, maintenance and control of products using the Product Maintenance module.
Product Maintenance centralises product setup including descriptions, classification, costing methods, pricing, inventory tracking and ordering controls.
Product Maintenance can be accessed by selecting Main > Products > Manage Products from the menu bar.

Adding Products
Main > Products > Manage Products
To add products:
- Click Add at the top of the module window

The Add Product window will open on the Details tab.

Enter the required fields and click Save.
You can save time by cloning a similar existing product and update only the required fields.
To clone a product:
- Select the product in Product Maintenance
- Click the Clone button at the top of the module
(or press F5 on the keyboard)
Products can only be added at the head office in some multi-branch systems.
Product Details
Main > Products > Manage Products > [Product] > Details
The Details tab controls identification, stock tracking, pricing and cost information.
Description and Handling
The top-left section defines how the product is identified and used.

Important fields:
- Code: Unique identifier for the product
- Description: Default name shown on transactions
- Active: Controls whether the product can be sold
- Stocked: Controls whether quantities and costs are tracked in inventory
- Edit Sell Price: Controls whether users can change pricing on transactions
Classification
The lower-left section defines how the product is grouped and reported.

Important fields:
- Costing Method: Determines how costs are calculated and posted
- Product Group: Primary reporting classification
- Search Code: Enables quick lookup
- Brand: Assigns brand for filtering and reporting
- Sales GL Account / Purchases GL Account: Used for non-stocked posting
Prices
The top-right section defines default sell prices.

These are the default sell prices that will be used when a product is added to an order:
- By default you will have access to Retail and Wholesale prices
- However, you can define up to six custom pricing slots
Sell prices are covered in more detail during a later onboarding guide.
Costs
The middle-right section defines purchasing cost values.

Important fields:
- Normal Cost: Standard expected purchase cost
- Special Cost: Alternative cost used when lower than normal
- Last Cost: Most recent purchase cost
- Average Cost: System-calculated stock valuation cost
- Standard Cost: Fixed cost used when Standard Cost method is enabled
Quantities
The bottom-right section shows current stock values.

Important fields:
- On Hand: Current physical stock
- Reserved: Allocated to incomplete transactions
- On Purchase Order: Ordered but not yet received
- Available Stock: Calculated as On Hand minus On Work Order minus Reserved
These values are system-calculated and cannot be edited.
Product Options
Main > Products > Manage Products > [Product] > Options
The Options tab controls costing behaviour, tax handling and ordering defaults.

Costing and Tax
Important fields:
- Sell By: Controls whether the item is sold by quantity or value
- Tax Code: Defines GST treatment
- Markup Group: Controls price calculation from cost
- Supplier Discount: Controls cost calculation when supplier discounts apply
Ordering and Control
Important fields:
- Normal Supplier: Default supplier for purchasing
- Allow Decimal Quantity: Enables fractional quantities
- Reorder Level / Reorder Quantity / Safety Quantity: Support stock replenishment rules when enabled
- Discontinued: Prevents further sales while retaining history
Additional Tabs
Main > Products > Manage Products > [Product]
Additional tabs provide enquiry and extended management functions such as transaction history, statistics, images and equivalents.

- Not all tabs are applicable to every product type or configuration
- Some tabs are only available at the Head Office in centralised systems.
See the Products help guide.


