1. Log into the Back Office System

Go to the website login.gpos.co.th, enter your email and password, then click Log In. Once logged in successfully, go to the “Item” menu and select “Item” to access the product management page.

2. Adding a New Product

On the product list page, click “+ Add Product”, then select “Add Item” to create a new product item.

3. Filling in Basic Product Information

Enter the Item Name. The Item alias shown on the right side is the product name for GRABFOOD (for merchants who have linked their account).

3.1 Adding Additional Languages

Click “+ Add Language” to add the product name in other languages. Supported languages: Thai, English, Burmese, and Chinese, useful for QR-code self-ordering systems that support multiple languages.

4. Selecting a Product Category

Choose the appropriate category by clicking the dropdown arrow to select an existing category.

4.1 Adding a New Category

If you want to create a new category, click “+ Add”. The system will prompt you to enter the new category name. Click “Ok” to save.

5. Choosing Product Type: Multiple Spec / Single Spec

A product single Spec is a product with a single fixed price.

5.1 Single Spec

If you select Product without variants, you can configure the following

• Ingredient (On/Off) - When enabled, this item will not appear on the POS and will not appear on receipts when used in a combo.
• Barcode - Enter a 5–14 digit barcode (if available).
• Inventory - Enter the stock quantity to allow automatic stock deduction.
• Minimum stock - Set a threshold to receive alerts when stock falls below the specified amount.
• Selling Price
• Cost Price - The system will automatically calculate net profit.

6. Multiple Spec (Multiple Prices / Multiple Options)

Suitable for items with different versions, e.g. coffee (hot / iced / frappe), shirts (S / M / L).

6.1 Setting Up Multiple Spec

If you select Product with variants, you can Enter variant names (e.g., hot, iced, frappe) , Enter different prices for each variant , Click “+ Add Spec” to add more variants , Remove previously added variants as needed or Add languages for each variant name

6.2 Adding Languages for Variants

Click “+ Add Language”, then choose the language you want to add. Supported languages: Thai, English, Burmese, Chinese. Click “Ok” to save.

7. Setting the Product Sales Format

Sales by Piece Item, Used for regular fixed-unit sales. Specify the product unit, such as piece, pack, plate, bowl, etc.

7.1 Weighing Items

Used for products sold by weight. Select a unit: g (grams) or kg (kilograms).

8. SKU (Stock Keeping Unit)

SKU is the product code, which the system generates automatically.

9. Preference & Modifier

Choose options or additional options for this product. There are two types

• Preference - Used for POS settings, such as sweetness levels (low / medium / high), toppings, etc.
• Modifier - Used for POS and GRAB (recommended when the store syncs with GRAB).

9.1 Adding Options

Click “+ Add” to select the desired options.

9.2 Selecting Options

After clicking + Add, the system will display the created option groups. Select options from the categories on the left, tick the desired items, and click “Save”.

9.3 Option Settings & Management

• Required - Forces customers to select options based on the specified quantity.
• Maximum Selectable - Limits how many options can be selected within a group.

Management tools Trash icon (delete option) , Cross icon (delete entire option group) or + Add (add a new option)

9.4 Modifier

Click “+ Add” to choose additional options for the product.

9.5 Adding Additional Options

After clicking + Add, the system will display available additional option groups.
Select items from the categories on the left, tick desired options, then click “Save”.

9.6 Additional Option Settings & Management

• Required — Forces customers to select a minimum/maximum number of extra options
• Maximum Selection — Sets the upper selection limit within that group

Management tools Trash icon (delete additional option) , Cross icon (delete entire additional option group) or + Add (add a new additional option)

10. Setting Sales Status and Price Adjustment

Choose the product’s status

• Available - Visible on POS
• Unavailable - Hidden from POS

Price Adjustment settings

• Enable - Price can be adjusted on POS
• Disable - Uses the fixed preset price only

11. Product Display Settings

There are two display types

Image Display Upload a product image by clicking “+ Upload ”

Note : Supported files: jpg, png, jpeg (up to 6MB)

11.1 Color & Shape Display

Choose a color and shape if you do not want to use an image.

12. GRAB Description Settings

If integrated with Grab, you can set a description for GrabFood Setting , such as menu details, ingredients, etc. Click “Save” to complete product creation.