1. Log into the Back Office System

Go to the websit 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. Edit the Desired Product Item

Go to the product list section, then click the “Edit” button located next to the product item you want to modify.

3. Options & Additional Options

Scroll down to the Options / Additional Options section for the product item. There are two types available for selection.

• 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).

3.1 Adding Options

Click “+ Add” to select the desired options.

3.2 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”.

3.3 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)

3.4 Modifier

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

3.5 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”.

3.6 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)

4. Save Settings

After completing the configuration of Options / Additional Options, click “Save” to confirm the changes.