> For the complete documentation index, see [llms.txt](https://kb.logicerp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kb.logicerp.com/logic-erp-learning-hub-tutorials-and-best-practices/inventory/physical-stock-verification-of-puv/physical-stock-verification-of-puv-configuration/do-not-allow-import-stock-from-ext-file..md).
# Do not Allow Import Stock From Ext File.
**YouTube:** [How to Prevent Stock Import From External Files in Physical Stock Verification (PUV)?](https://www.youtube.com/watch?v=Z7oEbjW4fqY)
## How to Prevent Stock Import From External Files in Physical Stock Verification (PUV)?
In this tutorial, we will learn how to restrict users from importing stock quantities from an external file during Physical Stock Verification of a Purchase Voucher in Logic ERP.
***
### Objective of This Feature
* Prevent stock data from being imported from external files.
* Ensure physical quantities are entered manually or through scanning.
* Improve control over the stock verification process.
* Prevent unauthorized or inaccurate external stock updates.
***
### Access to the Physical Stock Verification Configuration
* Go to the **Physical Stock Verification of Purchase Voucher** module.
* Open the **Configuration** window.
* Locate the option labeled as:
> **"Do not Allow Import Stock From Ext File"**
Enabling this option prevents users from importing stock quantities from an external file during the Physical Stock Verification process.
***
### Observe the Default Behavior
Before enabling the restriction:
* Select the required **Voucher Type**.
* Choose **Purchase Voucher** for Physical Stock Verification.
* As the feature is currently disabled, the **Import Stock from TXT File** option is available.
This option allows users to import physical stock quantities from an external file.
***
### Import Stock from an External File
For demonstration, we have prepared the required stock details in an Excel file.
* Open the **Import Stock from TXT File** option.
* Select the prepared external file.
* Import the stock details.
**Result**
The physical quantities from the external file are successfully imported and updated in the Physical Stock Verification window.
***
### **Now, let's observe the behavior after enabling the feature.**
* Now, return to the **Physical Stock Verification Configuration** window.
* Enable: **"Do not Allow Import Stock From Ext File"**
* Save the configuration.
**Observe the Impact**
* Return to the Physical Stock Verification window and select the Purchase Voucher option.
**Result**
The **Import Stock from TXT File** option is no longer available.
This prevents users from importing physical stock quantities through external files.
***
### Key Benefits
* Prevents external stock data imports.
* Provides better control over physical stock verification.
* Reduces the possibility of unauthorized quantity updates.
* Ensures quantities are verified manually or through item scanning.
* Improves the reliability of physical stock verification.
***
### Final Outcome
Once **"Do not Allow Import Stock From Ext File.."** is enabled, users cannot import stock quantities from external files during Physical Stock Verification of Purchase Vouchers. Physical quantities must instead be entered manually or updated through item scanning, ensuring better control and accuracy in the verification process.
---
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