# Do not Allow Backdate Entry Modifications After Physical Stock is Entered. **YouTube:** [How to Prevent Back Date Changes in Purchase Once Physical Stock is Recorded?](https://www.youtube.com/watch?v=kfSikZIls0U) ## How to Prevent Back Date Changes in Purchase Once Physical Stock is Recorded? In this tutorial, we will cover how to configure the system to restrict backdated entries or modifications in purchase vouchers once the physical stock has been recorded. This helps maintain inventory accuracy and prevents unauthorized changes after stock verification. *** ### **Enable the Restriction Setting** * Open **Logic Admin** and go to **Global Settings**. * Go to **Other** section and click to "User Rights Settings" * Locate and enable the option labeled as: **"Do not allow backdate entry/modifications after physical stock is entered"**

Let's proceed with this option turned on to understand its practical implications in billing.

* Click **Save**, then **restart the software** to apply the changes. *** ### **Demonstrate the Workflow** * We've already saved a purchase entry. * Proceed to enter **Physical vs Actual Stock** by **scanning the items one by one**.

As shown above in the picture, scan items to enter Physical vs Actual Stock.

* Once scanning is completed, **save the physical stock document**. *** ### **Test the Restriction** ***Attempting a Backdated Entry*****:** * Try to create a **purchase entry dated before or on** the physical stock entry date.

As shown in the picture above, the software will block the action and display an error.

* The software will **block the action** and show an error:\ \&#xNAN;*"New purchase entries are not allowed if the document date is before or on the date the physical stock document was created."* ***Attempting a Modification*****:** * Try modifying an **existing purchase entry** dated **before or on** the physical stock date.

* The software will display a prompt:\ \&#xNAN;*"Modification of purchase documents dated before or on the physical stock document date is not allowed."* ***Entry After Physical Stock*****:** * Create a purchase voucher with a **document date after** the physical stock entry. * The software **allows** the entry without restrictions. *** ### **Conclusion** This setting ensures the **integrity of stock records** by preventing backdated changes once physical stock is captured, thereby supporting **accurate inventory control**. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://kb.logicerp.com/logic-erp-learning-hub-tutorials-and-best-practices/user-access/logic-global-admin/others/user-rights-settings/do-not-allow-backdate-entry-modifications-after-physical-stock-is-entered..md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.