# Allow Rate = 0

**YouTube Link:** [How to Enable Zero Rates in the Sale Bill ?](https://www.youtube.com/watch?v=3octn99gvh0)

## How to Enable Zero Rates in the Sale Bill ?

In this Tutorial, we walk you through enabling zero rate billing in Logic ERP. This feature allows you to process transactions with a zero sale rate, ideal for scenarios like internal transfers, discounts, or promotional items.

**Step-by-Step Guide**

* **Initial Observation**:
  * When entering a sale rate as zero, the software will display an error message: "Enter rate." This is because zero rate billing is initially not allowed.

<figure><img src="/files/EIBFNysEkiV3yZksIEbf" alt=""><figcaption><p>Prompt for "Zero Rate"</p></figcaption></figure>

* **Configuration**:
  * To allow zero rate billing, head to the "Sale Voucher Configuration."
  * Select the appropriate billing series.
  * Find the option labeled "Allow rate = 0."

<figure><img src="/files/AejpyY2TC0iWogivD7Y9" alt=""><figcaption><p>Let's enable this feature and observe its impact.</p></figcaption></figure>

* **Save Changes**: Make sure to save the modifications.

#### Demonstrating the Feature

* Verify the feature by generating a Sales Bill.
* Complete transactions by Entering Item Rate with Zero.
* The software will now allow you to proceed with a zero rate entry.

**Conclusion**

Once configured, Logic ERP will seamlessly handle zero rate transactions. This simplifies internal transfers or promotions without requiring manual workarounds.


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