# Allow Undo/Re-Construct BR/BP Entries of advances against Chalan/Sale Order
YouTube: [How to Allow Undo or Rebuild of BR B/P Entries for Advances Against Challans/ Sale Orders?](https://www.youtube.com/watch?v=ma60slkmRGU)
## How to Allow Undo or Rebuild of BR B/P Entries for Advances Against Challans/ Sale Orders?
In this tutorial, we will explain how to enable a feature in **Logic ERP** that allows users to **undo or reconstruct BR/BP entries** related to **advances received against Chalans or Sale Orders**. This feature provides greater flexibility in managing advance payments and their adjustments.
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### **Default Behavior**
* By default, Logic ERP **does not allow** users to undo adjustments of advances linked to a **Chalan** or **Sale Order**.
* When attempting to reverse such entries, an **error message is displayed**, preventing the action.
As you can see in the picture, the software is prompting an error message.
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### **Enable the Undo/Reconstruct Feature in Logic Admin**
* Open the **Logic Admin Panel**.
* Navigate to the "**Global Settings"** and click to "**Account Voucher".**
* Locate and enable the option labeled as: **“Allow Undo/Reconstruct BR/BP Entries of Advances Against Chalan/Sale Order”**
Let's proceed with this option turned on to understand its practical implications in Voucher entry.
* After enabling the setting, **save the configuration**.
* **Restart the Logic ERP software** for the changes to take effect.
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### **Verify the Functionality**
* Attempt to undo an **advance adjustment** made against a **Chalan** or **Sale Order**.
* You will now observe that the software **permits** the undo action.
* This allows the user to **re-adjust the advance amount** against another bill or document as needed.
***
### **Conclusion**
Enabling the **“Allow Undo/Reconstruct BR/BP Entries of Advances Against Chalan/Sale Order”** option provides greater flexibility and control over financial adjustments. It is especially useful when managing prepayments that need to be reallocated due to changes in billing or delivery.
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