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# New Feature - Selling Modifier Products by Portion

For your convenience and to make the sales process more flexible, the ability to sell products with modifiers **by portion** has been added to the Terminal.
### 🧩 What is the new feature?
Previously, selling products with modifiers by portion was not supported. Now it is possible.
* When you activate **portion** for a product (by selecting the **Portion** checkbox),
* and set the **“Adapt to portion”** option for the modifier to **“Yes”**,
the user can select modifiers **and** sell by portion at the same time.
### Configuration Steps
For this feature to work, these two settings must be selected correctly:
1. **At Product Level**: The **Portion** checkbox must be ticked.
2. **At Modifier Level**: The **“Adapt to portion”** field must be set to **Yes**.
### Price Calculation
When both portion and modifier are active, the price is calculated as follows:
**Total Price = (Product Price × Portion Quantity) + (Modifier Price × Portion Quantity)**
In the Terminal, this change appears immediately, and the price shown to the customer reflects the real portion size.
### Testing and Verification
The new feature has been tested and confirmed with the following checks:
* After selecting portion in the Terminal, both the product price and the modifier price adjust according to the portion.
* The price is calculated correctly according to the formula and displayed accurately in the interface.