When clicking an email report, you will see the high-level stats of how the message is currently performing. For exporting data, see Export Message Data.

Delivery Statistics

Delivered

Delivery stats around the message successfully being sent to the email Subscriptions or not.

Opens

Usually counted as the user clicking the email to view the full content, though some inboxes count the open when simply opening the inbox and the email is within view (usually collapsed). There are other factors affecting open rates as discussed in Why are Open events low?

Clicks

This is counted when a user clicks a URL link in the email. The link can be part of text or images. This does not count embedded video clicks like if you were to embed a YouTube video in the email (there is not a way to track this unless you link directly to YouTube via a URL).

Unsubscribes & Spam

See Email unsubscribe links & headers for details on unsubscribes and Email deliverability for details on being marked as Spam and reducing complaints.

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API Message Data Retention Limit

Messages sent from the OneSignal API or Automated Messages are only saved for about 30 days.
You can export message data for your records through our API or Dashboard. See Exporting Data for more details.

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Audience Activity

See which email address subscriptions were delivered, opened, clicked, unsubscribed, bounced, failed, and complained. Timestamps show most recent event, and definitions for each event are above.

Audience activity is available for 30 days from the time the message is displayed.

Available options:

• Export activity data for all information, including the failure message reasons.
• Retarget users based on activity data to follow up. See Retargeting Messages for more details.

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FAQ

Why are my emails marked as failed?

Within the Audience Activity section, you can view and export the message data with failure reasons. The two most common reasons for failed emails are:

• Sending to non-existent email domains. E.g [email protected] or [email protected]
• Sending to recipients emails that are on your ESPs Suppression list.
• If you are using Custom Unsubscribe Links in your emails, you will need to unsubscribe the email address within OneSignal using our update user endpoint or via the CSV Update Tool
• Previously bounced emails will be added to your ESPs Suppression list and marked as failed.
• The domain is not warmed up to send the volume of emails and is being throttled by the Inbox Service Provider. See warmup guidefor instructions on warming your domain.

Failed emails can occur for several reasons. If you follow email best practices, the number of failures should be low. See How to improve email deliverability for more details.

Why are Open events low?

Tracking email Open events isn't always 100% reliable. There are ways your users can (accidentally or purposely) block open event tracking like using strict ad filtering (uBlock origin for example), strict inbox privacy settings, or blocking requests at the network level.

If you are troubleshooting multiple email addresses, try testing on different devices and browsers connected to different networks (mobile, home, business, etc) as a way to isolate where an issue might be.

How to track which link was clicked?

It is recommended to use UTMs within your links at this time to track which specific link was clicked using Google Analytics or another analytics tool.

Why are Click events low?

There are few reasons why you would see low click events. Generally, it's due to certain browsers blocking these events. For example, the Brave browser blocks UTM tracking by default. Opera GX and Firefox also have settings to block UTM tracking which they recommend to users during setup.

If you have more cases reproducing this and you are 100% sure that the UTMs are only for specific campaigns, we can try to look deeper into it

If you see 0 click events after you click a link:

• Check that Click Tracking is enabled.
• Check your webhooks are set up. Contact [email protected] if using OneSignal Email.

Why do I see emails in Remaining?

There are two reasons that you'll see emails in Remaining. The first reason is when emails are scheduled to be sent in the future. If you view a report with emails scheduled to be delivered, you'll see those emails listed as remaining. This also includes Auto Warm Up, where OneSignal creates a delivery schedule that distributes sending throughout the day over several days to preserve your sending reputation.

The other reason an email is listed as remaining is the period of time where we have not received a response from the Inbox (e.g., Gmail, Outlook, Hotmail, etc.) to confirm the delivery. It can take several hours, sometimes even up to 8 hours, for an email to be received by an inbox. For example, the email might bounce for several hours as we retry sending before we mark the email as Bounced. Over time, after sending an email campaign, you'll see the number of emails in Remaining decrease and the Delivered emails increase.

If you see emails stuck in remaining, it's safe to assume these emails were delivered; we just never received official confirmation from the Inbox. You can check the Audience Activity to verify the 'Sent at' time-stamp for each of these emails, verifying that OneSignal sent the email to the inbox, but you will not see the 'Delivered', 'Bounced' or 'Failed' time-stamp.