# Do Not Allow Multiple Companies in a Single Sale Bill/Return
**YouTube:** [How to Restrict Selection of Multiple Brand Items in Sale Bill ?](https://www.youtube.com/watch?v=9aDkPv54Ycg)
## How to Restrict Selection of Multiple Brand Items in Sale Bill ?
By default, the system allows adding items from different brands (companies) in a single sale or sale return bill. This tutorial shows how to restrict this behavior.
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### S**teps to Enable Brand Restriction in Sale Vouchers**
* Open the **Logic** folder and launch **Logic Admin**.
* Click on **Global Settings**.
* Navigate to the **Sales Settings - 2** tab.
* Locate and enable the option: **"Do Not Allow Multiple Companies in a Single Sale Bill Return"**
Let's keep this feature enable to observe its impact in Billing.
* Click **Save** to apply the changes.
* **Restart the software** to ensure the setting takes effect.
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### Confirm Functionality
* Create a new **Sale** or **Sale Return** voucher.
* Add an item from one brand.
* Try to add another item from a **different brand**.
* The system will display a message stating that items from **multiple brands or companies are not allowed** in a single bill.
This picture shows that the software is prompting you that multiple companies cannot be selected.
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### **Benefits of Enabling This Setting**
* **Improves Billing Accuracy** – Prevents accidental mix-ups between brands during invoicing.
* **Enforces Brand-Specific Billing Policies** – Ensures brand-level segregation for accounting or reporting.
* **Reduces Manual Errors** – Avoids conflicts in pricing, discounts, or tax rules across brands.
* **Supports Inventory Control** – Easier tracking and reconciliation of stock and sales per brand.
* **Streamlines Auditing** – Simplifies brand-based sales analysis and auditing.
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