Why do the 'Sent' push notification numbers look different in the Journey statistics, the Push Notification dashboard, and the Detailed Statistics?

The 'Sent' metric can appear differently in various sections because each view provides a different level of detail:

1. Push Notification Dashboard / Detailed Statistics ('Pushes Sent' or total 'Sent'): This shows the total number of attempts made by Pushwoosh to send a notification to all targeted devices (iOS, Android, etc.) via the respective push gateways (like Apple Push Notification service — APNs, or Firebase Cloud Messaging — FCM).
2. Journey Statistics ('Sent'): This number often represents the successfully processed sends. It is typically calculated by taking the total attempts (from the Dashboard/Detailed Stats) and subtracting specific errors reported by the gateways, such as 'Unregistered' (meaning the device token was invalid). This gives a count of pushes sent to potentially valid devices.
3. Detailed Statistics ('Delivery Report' Sent per platform): This section breaks down the sends by platform (e.g., iOS, Android). Initially, it might have only shown platforms with errors, but it has been updated to display all targeted platforms for clarity. The sum across platforms here should match the total 'Pushes Sent' on the main dashboard.

Essentially, the Dashboard shows the initial attempt count, while the Journey view often shows the attempt count minus known invalid devices.