Why Does the "BadDeviceToken" Error Occur?

Understand and fix the BadDeviceToken error in iOS push notifications caused by mismatches between your build environment and MoEngage dashboard.

Problem

When sending push notifications in iOS to a reachable user, the error “BadDeviceToken” appears.

Explanation

This error occurs in the following scenarios:

• Push notifications are sent from the Live dashboard while the build is in the Debug Environment.
• Push notifications are sent from the Test dashboard while the build is in the Release Environment.
• You attempt to test push notifications from any dashboard while a Debug Environment build is archived using Production Apple Certificates.
• You attempt to test push notifications from any dashboard while a Release Environment build is archived using Development Apple Certificates.

Solution

To avoid this error, ensure the following configurations:

• Debug configuration. Use Developer Certificates and the Test dashboard in MoEngage.
• Release configuration. Use Production or AdHoc Certificates and the Live dashboard in MoEngage.