BLISS is a subscription-based software. To use BLISS, you need to buy CIN credits and register your company. To buy CIN you need to create an account in BLISS ( Refer article: How do I create an account in BLISS).
Step 3: After clicking on ‘Make Payment’ button, a dialog box will appear as shown below. Enter the details of the person/entity in whose name the invoice has to be generated along with the GSTIN. Then Click on Confirm Payment.