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Airship Expired Device Token

The device token has expired and is no longer valid.

Understanding Airship: A Powerful Push Communication API

Airship is a leading provider of push communication APIs, designed to help developers engage users through targeted notifications and messages. It enables applications to send real-time updates, alerts, and personalized content directly to users' devices, enhancing user experience and engagement.

Identifying the Symptom: Expired Device Token

One common issue developers encounter when using Airship is the 'Expired Device Token' error. This symptom manifests when an application attempts to send a push notification, but the device token used is no longer valid, resulting in failed delivery attempts.

What is a Device Token?

A device token is a unique identifier assigned to a user's device, allowing Airship to target specific devices for push notifications. It is crucial for the successful delivery of messages.

Exploring the Issue: Why Device Tokens Expire

Device tokens can expire for several reasons, including:

  • The user has uninstalled and reinstalled the app, generating a new token.
  • The device has been restored or reset, resulting in a new token.
  • The token has been manually invalidated by the user or the system.

When a token expires, any attempt to send notifications using that token will fail, and an 'Expired Device Token' error will be logged.

Steps to Resolve the Expired Device Token Issue

To fix the 'Expired Device Token' issue, follow these steps:

Step 1: Re-register the Device

Ensure that the application re-registers the device with Airship to obtain a new, valid device token. This can typically be done by triggering the registration process within the app's lifecycle events.

Step 2: Update the Device Token

Once a new token is obtained, update your server-side database to replace the expired token with the new one. This ensures that future notifications are sent to the correct device.

Step 3: Monitor Token Expiry

Implement monitoring to detect token expiry events. Airship provides feedback services that can notify your application when a token is no longer valid. Utilize these services to proactively manage token updates.

Additional Resources

For further information on managing device tokens and handling push notifications, refer to the following resources:

By following these steps and utilizing the resources provided, developers can effectively manage device tokens and ensure successful push notification delivery using Airship.

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