# Bill Print Mode
**YouTube:** [How to Enable Sending Sale Bill Print as E- Bill through SMS or WhatsApp in Logic ERP?](https://www.youtube.com/watch?v=Kla9IItt7oA)
## How to Enable Sending Sale Bill Print as E- Bill through SMS or WhatsApp in Logic ERP?
In this tutorial, we’ll explore the **Bill Print Mode** settings in Logic ERP and understand how each parameter affects the printing or sending of GST E-Bills after a transaction is saved.
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### **Accessing Bill Print Mode Settings**
* Go to **Sale Voucher Configuration**.
* Select the relevant **Billing Series**.
* Under **Other Settings 1** click on **Other Settings**.
* Locate the option labeled as:
> **Bill Print Mode**
Note: This setting defines how the system will handle GST E-Bill printing or sending after saving a transaction.
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### **Activating and Configuring Aap Tak App**
Before selecting a default print mode, ensure the **Aap Tak App** is activated and configured:
* In the **Billing Module**, open **Aap Tak App** → **Activate Aap Tak App**.
* Enter your **Activation Key**.
* Go to **Aap Tak App Configuration** and set preferences as per your requirements.
* Click **Aap Tak Key Bill** to open the **E-Bill Configuration** screen.
* Here, define the billing and E-Bill preferences for each bill series.
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### **Linking E-Bill Settings with Bill Print Mode**
For example, in the **Retail Series**:
* Select the **Sale Bill Printing Type** and **Sale Bill Print Configuration**.
* In **Bill Print Mode**, choose the second parameter:
> **Prompt Customer for E-Bill**
* Save the data.
When you return to **Sale Voucher Configuration**, you’ll see that the selected mode is now applied by default.
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### **Understanding Each Bill Print Mode Parameter**
#### **1.) Default**
* Uses the system’s standard printing process.
* Directly prints a paper bill according to the existing settings.
* No E-Bill prompt is displayed.
#### **2.) Prompt Customer for E-Bill**
* After saving a bill, the system asks:
> *Do you want to send the invoice to the customer?*
* If **Yes** → E-Bill is sent via SMS/WhatsApp to the registered mobile number.
* If **No** → A paper bill is printed.
* **Example – Prompt Customer for E-Bill**
* Enter customer details in the **Retail Billing Window**.
* Complete the transaction and save the bill.
* A confirmation message appears:
> *Do you want to send the invoice to the customer?*
* Select **Yes** → E-Bill is sent to the customer’s registered mobile number.
* The customer can click the provided link to view the invoice anytime.
* Select **No** → Paper bill is printed.
#### **E-Bill Only**
* Automatically sends the E-Bill via SMS/WhatsApp upon saving the bill.
* No paper copy is printed.
#### **E-Bill + Print**
* Sends the E-Bill via SMS/WhatsApp and simultaneously prints a paper bill.
#### **Print Only If E-Bill Failed**
* If the E-Bill cannot be sent (e.g., due to an invalid phone number), a paper bill is printed automatically.
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### **Key Benefit:**
The **Bill Print Mode** option provides flexibility to manage E-Bill delivery, reduce paper usage, and ensure quick invoice sharing with customers.
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