# Set Back Date Entry/Modification Locking Schedule

**YouTube:** [How to Configure Backdate Entry and Modification Locking Schedule?](https://www.youtube.com/watch?v=YkLsRLQFx4Q)

## How to Configure Backdate Entry and Modification Locking Schedule?

In this tutorial, you will learn how to **Restrict Backdated Entries and Modifications** in Logic ERP using the **Backdate Entry / Modification Locking Schedule** feature. This helps maintain **Data Accuracy, Security and Audit Control**.

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### Open Locking Schedule Setup

To begin:

* Go to the **User Access Module**.
* Open **Set Back Date Entry / Modification Locking Schedule**.

<figure><img src="/files/eM7J2orDIvCqbFizF3z3" alt=""><figcaption></figcaption></figure>

* This window displays a list of **documents** (e.g., Sale, Purchase, etc.) where locking rules can be applied.

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### Select Document for Locking

* Select the **document** (e.g., *Sale Document*).
* Right-click on the selected document.
* Click on **Settings**.

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

**Shortcut:**

* Press **F3** to directly open settings.

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### Configure Lock Criteria

* The **Lock for Back Date Entry** window will open.
* Here, you can define various locking rules based on your business needs.

#### Apply Fixed Days Lock

Let’s configure a **Fixed Days Lock**.

* Select the **number of days** to restrict (e.g., 1, 2, 3 days).

<figure><img src="/files/jOT001uheZj2zhE1MCZ0" alt=""><figcaption></figcaption></figure>

* Click **Save**.

**What this means:**

* You **cannot modify existing entries** within the locked days.
* You **cannot create new backdated entries** for those days.

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### Implement with Modification Restriction

Now verify the impact:

* Go to the **Sale Bill Window**.
* Open a bill that falls within the **locked period**.
* Try to **modify and save** the bill.

<figure><img src="/files/rlTW2D6pRv5OCz0qBmul" alt=""><figcaption></figcaption></figure>

**Result:**

* The system will **restrict the modification**.
* An **error message** will appear indicating:
  * *Entry modification is locked for this period*

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### Implement with Backdated Entry Restriction

Now test creating a backdated entry:

* Create a **new sale bill**.
* Enter a **date within the locked period**.
* Try to **save the bill**.

<figure><img src="/files/M4qqY90enh3pHPQ5tNLo" alt=""><figcaption></figcaption></figure>

**Result:**

* The system will **not allow saving**.
* Backdated entries within the locked period are **restricted**.

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### Key Benefits of Locking Schedule

* Prevent unauthorized backdated entries
* Ensure data integrity and accuracy
* Improve audit compliance
* Control user activity effectively
* Reduce risk of financial manipulation

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### Final Outcome

You have successfully learned how to:

* Configure **Backdate Entry Locking**
* Restrict **Modification of Past Transactions**
* Enforce **data security policies**

Your system is now better equipped for **controlled and secure operations**.


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