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# Entry of Amount Received from Customers should be mandatory for Cash Billing
**YouTube:** [How to Make Amount Received Entry Mandatory for Cash Billing](https://www.youtube.com/watch?v=Gces1xhDzIQ)
## How to Make Amount Received Entry Mandatory for Cash Billing?
In this tutorial, we’ll walk through a **Logic ERP** feature that enforces mandatory entry of the **Amount Received** field during **cash billing** to ensure complete and accurate payment details.
***
### Access Global Settings in Logic Admin
* Open **Logic Admin**.
* Navigate to **Global Settings**.
* Under **POS Options**, go to the **POS Options 1** section.
* Locate and enable the option labeled as:
> **"Entry of Amount Received from Customers should be mandatory for Cash Billing"**
* Click **Save** and **restart the software** to apply the changes.
***
### Implement **the Feature**
* Open the **Sale Voucher** window and start a new cash billing transaction.
* Leave the **Amount Received** field **blank**.
* Attempt to **save the voucher**.
***
### **System Response**
* The software will block the action.
* An **error message** will be displayed:
> **"Amount paid cannot be left blank."**
***
### **Resolution**
* Enter the **correct amount** in the **Cash Amount Received** field.
* Once the amount is filled in, the software will **allow the voucher to be saved successfully**.
***
### **Why Use This Feature?**
This feature ensures:
* Proper **cash handling discipline** at billing counters.
* Elimination of errors due to **missing payment entries**.
* Improved accuracy in **daily cash reconciliation**.
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