# Missing Bill Number
**YouTube:** [How to Generate a List of Missing Bill Numbers?](https://www.youtube.com/watch?v=lUAoRshYvuA)
## How to Generate a List of Missing Bill Numbers?
In this tutorial, we will learn how to **identify and track missing bill numbers in Logic ERP**. This feature helps you monitor bills that have been **deleted or skipped**, ensuring better audit control and compliance.
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### Accessing the Missing Bill Numbers Module
* Navigate to **Billing** and open **"Missing Bill Numbers"**
* This module allows you to track bill numbers that are missing due to deletion or skipping
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### Viewing Missing Bill Numbers
* Select the required **Bill Series**
* Use the **Bill Range** option to define a specific range of bill numbers
* Click on **Refresh**
***System Output:***\
The system displays all missing bill numbers for the selected bill series within the defined range.
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### Impact of Deleting a Sales Bill
Let’s see how deleted bills are reflected:
* Open a **Sales Bill**
* Delete bill number **GST105**
* The bill is successfully deleted
**Now:**
* Return to the **Missing Bill Numbers** module
* Click **Refresh**
The deleted bill number **GST105** is now listed in the missing bill numbers report.
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### Impact of Skipping a Bill Number
Next, let’s observe the impact of skipping a bill number:
* The last generated bill number is **GST175**
* The next bill number should be **GST176**
* Skip bill number **GST176**
* Generate the next bill using **GST177**
**Now:**
* Go back to the **Missing Bill Numbers** module
* Click **Refresh**
Since bill number **GST176** was skipped, it is correctly reflected in the missing bill numbers list.
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### Conclusion
The **Missing Bill Numbers** module in Logic ERP ensures complete visibility of deleted or skipped bills. This helps maintain **proper documentation, audit accuracy, and regulatory compliance**, especially for GST and financial reporting.
