QB does have the e-invoicing feature?.

I can share some information about the e-invoicing feature in QuickBooks Online (QBO), @chandraiah-c-i-e.

E-invoices is available in QuickBooks Online (QBO). You can receive online payments on your invoices using Razorpay. You’ll just have to connect your existing Razorpay account or sign up for a new account and connect it to your QBO account. 

For detailed steps on setting up your Razorpay account, activating, and connecting to your QBO account, refer to the following article: Payment enabled invoices—Razorpay. 

Once you’ve received the customer payment, you can now record and categorise the payment. Check this article for detailed guidance: Record invoice payments in QuickBooks Online. 

You can always go back to this thread if you have follow-up questions in setting e-invoices and or anything else, by leaving a reply below. I'm always here to assist you. Take care and have a great rest of the day!