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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:

Main features

With Omnisend, you can:

  • Create, run, and automate email marketing campaigns and SMS messages.
  • Get data on "regular" email campaigns or from A/B test campaigns. The A/B test campaigns allow testing different subject lines and sender names as well as completely different versions of the email.

  • Metrics provided include the number of emails sent in the campaign, how many of them were opened, how many were clicked, and whether some of the email recipients raised complaints.

  • Pull team metrics from several different campaigns at the same time. This makes it easy to compare different campaigns with each other.

Data protection agreement 

If you have any questions about how Supermetrics handles and secures your data, read our policy on data privacy and security.


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. Under Select accounts, select the accounts.


Learn how to reauthenticate the data source with Supermetrics in Google Sheets.

Next steps

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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