# Edit Lot Rate While Billing
**YouTube:** [How to Edit Lot Rate While Billing in Sale Bill?](https://www.youtube.com/watch?v=2owoaLXAS8w)
## How to Edit Lot Rate While Billing in Sale Bill?
In this tutorial, we’ll guide you through the process of **editing lots during billing**.
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### Generate a Sales Bill
* Start by generating a **sales bill**.
* In the **Lot Number window**, you can view all the available lots for the selected item.
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### Edit a Lot
* To edit a lot, press **F5** on the lot you want to modify.
* The **Edit Lot Details window** will open
* Here you can change the displayed information.
* For example, let’s edit the **sale rate**.
The lot rate has now been updated successfully.
* Proceed with this lot transaction and **save the bill**.
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### Verify in Sales Report
* Open the **Sales Report** to review changes.
* Earlier, the same lot had a sale rate of **999**.
* After editing, the sale is now recorded at **1,499.**
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### Edit Multiple Lots with Override Option
* If you want to edit multiple lots at once, use the **Override Lot Number Rate** option.
* Navigate to Inventory and then select **"Overwrite Lot No.\`s/Rates".**
* Select the **item or lot details** to be updated and click **Refresh**.
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### Update Rates in Bulk
* Let’s update the sale rate:
* Currently, the item rate is 100.
* To apply a new rate to all items, press **F3** on the rate column.
* Enter the new value, e.g., **299**.
* The updated rate is automatically applied to all items.
* Similarly, let’s override another lot rate:
* Current rate: **6,000**
* Updated to **6,500**
* The lot rate is now revised for all items.
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### Save and Verify
* Save the changes and proceed to billing.
The updated rates for both lots are now **accurately reflected** during billing.
