# Lock All Modifications on or Before

**YouTube:** [How to Lock All Modifications On or Before a Defined Date?](https://youtu.be/4tNLuGvJ-MY)

## How to Lock All Modifications On or Before a Defined Date?

In this tutorial, we will learn how to use a **global option in Logic ERP** that restricts all types of modifications or deletions to documents created before a specific date. This feature is especially useful for ensuring data integrity after closing monthly or yearly accounts.

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### Configure Global Setting

* Open **Logic Admin**.
* Navigate to **Global Settings** 
* Under the **Other Settings** Click to **User Rights Settings**.
* Scroll to the bottom and locate the option labeled as:

> **“Lock all modifications on or before”**.

* Enter the **cut-off date** (e.g., 31-March-2025).
  * All entries created **on or before this date** will be locked.

<figure><img src="/files/gs2tKwQm1M3jSAQvbMW9" alt=""><figcaption></figcaption></figure>

* Save the settings and **restart the software** for the changes to apply.

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### Implement in Sale Bill

* Open the **Sale Bill** window.
* Select a bill created **before the defined lock date**.
* Try modifying the quantity and save the changes.
  * The software will immediately restrict the action and display an error message.

<figure><img src="/files/BPx7Sqz1hd8NPPn8SDQB" alt=""><figcaption></figcaption></figure>

* Similarly, if you try to **delete the bill**, the software will block it.

<figure><img src="/files/ULxGUbbnCpr9bjF1Vax4" alt=""><figcaption></figcaption></figure>

***

### Verify in Other Documents

* Open another document, such as a **Sale Challan**.
* Select an existing challan created before the locked date.
* Attempt to modify or update the details.
  * Once again, the software will prevent the action and display a restriction message.

***

### Example Scenario

| Document Type | Created On | Action Tried    | System Response      |
| ------------- | ---------- | --------------- | -------------------- |
| Sale Bill     | 15-Mar-25  | Change quantity | ❌ Restricted (Error) |
| Sale Bill     | 20-Apr-25  | Change quantity | ✅ Allowed            |
| Sale Challan  | 28-Feb-25  | Delete entry    | ❌ Restricted (Error) |

***

### Key Benefits

* Ensures **data integrity** by preventing accidental or unauthorized edits.
* Helps in maintaining **finalized accounts** after audit/closing.
* Provides better **control over historical records**.


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