# Do Not Allow Rate Modification in Sale Bill

**YouTube:** [How to Globally Restrict Editing of Rates in Sale Bill ?](https://www.youtube.com/watch?v=Q-1XuFGpzao)

## How to Globally Restrict Editing of Rates in Sale Bill ?

This tutorial explains how to enable the setting that restricts manual rate modification in sales billing within the Logic ERP system.

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### Implementation Procedure

* Navigate to the **Logic** folder and run **Logic Admin**.
* Click on "**Global Settings"** 
* Open the **Sales Settings - 2** tab.
* Locate and enable the option labeled: **"Do Not Allow Rate Modification in Sale Bill"**
* Click **Save** to apply the changes.

<figure><img src="/files/GyvUEFvNX5nBK3Cysgpl" alt=""><figcaption><p>Let's keep this feature enable to observe its impact in Billing.</p></figcaption></figure>

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### **Apply Across Series and Branches:**

* The same option is also available in **Sale Bill Configuration**.
* However, this setting must be configured **individually for each Series** if done from there.
  * Note: If you want to disable rate modification for a particular series, then lock the rate column using **Column Locks**.
* To apply the restriction **across all series and branches**, it is recommended to use the **Logic Global Admin** settings.

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### Validate the Changes

* **Restart the software** to ensure all settings take effect.
* Create a new **sale voucher**.
* Try modifying the rate in the voucher entry.
* The software will now **restrict any manual rate modification**.

<figure><img src="/files/X2GvHzbAIKqtf8sdnail" alt=""><figcaption><p>As you can see in the picture, rate editing has been disabled.</p></figcaption></figure>

* Only the **predefined rate in the lot** will be applied—manual entry will be blocked.

### **Key Benefits of Restricting Rate Modification**

* **Prevents Unauthorized Changes** – Stops manual rate edits by billing staff.
* **Ensures Pricing Consistency** – Uniform rates across branches and series.
* **Protects Profit Margins** – Avoids losses due to incorrect pricing.
* **Reduces Errors** – Minimizes mistakes in billing entries.
* **Enforces Policy Compliance** – Aligns billing with company pricing rules.
* **Simplifies Audits** – Easier to track and verify billing accuracy.


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