How to Create GSP User Name and Password to Generate E-Invoices on Refrens? (India)

To start generating E-invoices on Refrens, the first step is to create a GSP username and password on the e-invoicing web portal.

Let’s see how you can do it step-by-step:

1. Go to the NIC E-Invoice Web Portal at - https://einvoice1.gst.gov.in/

If you are already a user of the E-way bill system, you can use your E-way bill username & password here.
If you are not registered on the E-way bill portal, you will have to first register by clicking on the "Registration" tab highlighted above. After your registration, you will be able to generate a username and password. You can use the same credentials here.

4. Click on “API Registration”

5. Click on “User Credentials”

6. Click on “Create API User”

7. It will trigger an OTP to your registered mobile Number

Please enter OTP and click on Verify OTP

8. Click on “Through GSP”

9. Select “Vay Network Services Private Limited” as your GSP

10. Create API specific Username and Password and click on Submit

Note that the first half of your username will be automatically generated by the system. You only need to enter the last three characters to complete the username.

For example, for my business, Test_ is generated automatically - so I only need to enter the last three characters.

Here, I have entered 003 as the last three characters of my username - making the complete username Test_003.

11. Please confirm acknowledgment from the E-Invoice System

12. Please use the newly generated User Name and Password at Refrens to generate E-invoices , click here>

Updated on: 07/08/2026

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