# Do Not Allow Blank Rate
**YouTube:** [How to Make Rate Entry Mandatory in Purchase Orders?](https://youtu.be/Qiizbkf9i_M)
## How to Make Rate Entry Mandatory in Purchase Orders?
This tutorial explains how to **restrict saving a Purchase Order with Zero or Blank Rate** in Logic ERP. It demonstrates the default system behavior and how enabling a configuration ensures that all items must have valid rates before saving, thereby improving data accuracy and financial control.
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### **Objective of This Feature**
* Prevent saving Purchase Orders with **Zero or Blank Rates**
* Ensure **accurate costing and valuation**
* Maintain **financial discipline and data integrity**
***
### **Understanding Default Behavior**
* Create a **New Purchase Order Entry**
* Add items with **Zero Rate**
**Default System Behavior**
* Software **allows saving** the Purchase Order
* No restriction on Zero or Blank Rates
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### **Enabling Rate Restriction**
* Open **Purchase Order Module**
* Go to **Configuration Window**
* Navigate to **General Options Section**
* Locate enable the option Labeled as:
> **“Do Not Allow Blank Rate”**
* Click **Ok.**
***
### Implement **After Enabling the Feature**
* Create a **New Purchase Order Entry**
* Try adding an item with **Zero Rate**
**System Behavior**
* System **restricts the entry**
* Displays an **error message**:
* Rate entry is mandatory
***
### **Completing the Purchase Order**
* Enter a **valid rate** for the item
* Save the Purchase Order
**Result**
* Entry is successfully saved only after valid rate is entered
***
### **Key Benefits**
* Ensures **accurate purchase costing**
* Prevents **incomplete or incorrect entries**
* Improves **financial reporting accuracy**
* Strengthens **process control in procurement**
***
### **Best Practice Tips**
* Always enable this feature in:
* Standard purchasing workflows
* Regularly review configurations to maintain control
***
### **Final Outcome**
* Purchase Orders cannot be saved with **Zero or Blank Rates**
* Data remains **accurate and reliable**
* Procurement process becomes **more controlled and error-free**
* Financial records maintain **consistency and integrity**
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