Obtaining License Key

On the left sidebar, click on your account name and select API Keys and then click on Create a key.

New Relic API keys

For key type select Ingest - License, give a name to your key and press Create a key.

Create an API key screen in New Relic

Configuring New Relic Backend

In the New Relic backend configuration page, enter the License Key from previous step and name the backend.