# Stock Out Validation
**YouTube:** [How to Set Expiry / Purchase Date Stock Out Validation in Godown Wise Transfers?](https://www.youtube.com/watch?v=tLTb2WrwKas)
## How to Set Expiry / Purchase Date Stock Out Validation in Godown Wise Transfers?
In this tutorial, we will learn **how to apply stock-out validation checks in godown-wise stock transfer entries in Logic ERP**.
***
### Access Stock Out Validation Settings
* Open the **Configuration** window.
* Navigate to **Other Settings**.
* Locate the option labeled as "**Stock Out Validation"** option.
* This dropdown provides **three validation modes** to control how stock lots are selected during stock transfer.
* By default, the validation is set to **None**.
***
### Validation Mode: None (Default)
* Create a **new stock transfer voucher**.
* Transact an item that has **multiple lots available**, for example:
* One lot with a **nearer expiry date**
* Another lot with a **later expiry date**
**Result:**
* In **None** validation mode, the system **allows saving the voucher** even if you select a lot with a later expiry date.
* No warning or restriction is applied.
This mode provides complete flexibility but does not enforce stock rotation rules.
***
### Validation Mode: FIFO on Lot Expiry
* Open **Configuration → Other Settings**.
* Change **Stock Out Validation** to **FIFO on Lot Expiry**.
* Save the configuration.
Now, create a **new stock transfer entry** and select the same item.
**Result:**
* If you attempt to select a lot with a **later expiry date** while another lot with an **earlier expiry date** is available:
* The system displays a **warning message**.
* This alert informs you that a lot with an earlier expiry exists.
**Benefit:**
* Ensures **proper stock rotation**
* Helps prevent **expiry-related losses**
* Guides users to transfer the **nearest-expiry lot first**
***
### Validation Mode: FIFO on Lot Purchase Date
* Open **Configuration → Other Settings**.
* Change **Stock Out Validation** to **FIFO on Lot Purchase Date**.
* Save the configuration.
* Initiate a **new stock transfer voucher**.
**Result:**
* If a lot with an **earlier purchase date** exists in stock and you attempt to transfer a **newer purchased lot**:
* The system generates a **validation alert**.
* This ensures that the **oldest purchased stock** is transferred first.
**Benefit:**
* Maintains **FIFO compliance based on purchase date**
* Helps in accurate inventory flow and audit control
***
### Conclusion
The **Stock Out Validation** feature in Logic ERP ensures better inventory control during godown-wise stock transfers by offering:
* **None** – No validation, full flexibility
* **FIFO on Lot Expiry** – Prioritizes lots nearing expiry
* **FIFO on Lot Purchase Date** – Prioritizes oldest purchased stock
By selecting the appropriate validation mode, you can enforce stock rotation policies and reduce inventory risks effectively.
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