> 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/user-access/logic-global-admin/back-post-dated-locks/back-date-entry-locks-post-dated-entry-locks.md).
# Back Date Entry Locks/Post Dated Entry Locks
**YouTube:** [How to Configure Global Lock for Back Dated/ Post Dated Transactions?](https://www.youtube.com/watch?v=qpwUuprnPK8)
## How to Configure Global Lock for Back Dated/ Post Dated Transactions?
In this tutorial, we’ll discuss a **global option** in Logic ERP that allows you to lock both **backdated** and **post-dated** entries to ensure strict control over financial transactions.
***
#### **Configure Backdated & Post-Dated Locks**
* Open **Logic Admin**.
* Navigate to **Global Settings** and click to **Back/Post Dated Locks**.
* You will find two separate options:
* **Backdated Entry Lock**
* **Post-Dated Entry Lock**
* From the provided list of documents, **select the documents** where you want to apply these locks by ticking the relevant checkboxes.
* Save the changes and **restart the software** to apply the settings.
***
### **Backdated Entry Lock in Action**
* Open the **Sale Bill Window**.
* Initiate a new transaction using a **past date**.
* When you attempt to save the entry, the system will **restrict it** and display an error message, as the **backdate lock** is enforced.
***
### **Post-Dated Entry Lock in Action**
* In the same **Sale Bill Window**, create a new transaction with a **future date**.
* Attempt to save the voucher.
* The system will **block the transaction** and display an error message stating that **post-dated entries are not allowed**.
***
### **Key Benefit:**
This feature ensures **data integrity** and prevents unauthorized users from entering or manipulating transactions outside the permitted date range.
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