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Omnisend: Authentication guide

This guide will walk you through how to authenticate or reauthenticate Onisend with Google Sheets, Data Studio, and Excel. 

Before you begin

To connect Supermetrics to Omnisend, you need:


Google Sheets Data Studio  Excel Data integrations
Before you can authenticate the data source in Google Sheets, you need to install the Supermetrics add-on.
  1. Open a new Google Sheets file. 
  2. Navigate to ExtensionsSupermetricsLaunch to open the Supermetrics sidebar.
  3. Under Data source, select Omnisend.
  4. Enter your Account name and API key and click Start.
  5. Select the accounts you'd like to include in your reporting.

When you're ready, learn how to create your first Supermetrics query with Omnisend.


  • If you encounter an authentication error such as “authentication failed”, “you need to reauthenticate” or similar, see this guide
  • If you encounter a permission error such as “user permission denied” or similar, follow this guide.

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