How do I cancel a scheduled push notification?

You can cancel a push notification as long as it hasn't been sent yet. Once a message has been delivered to devices, it can't be recalled.

Cancel in the Control Panel

1. Open Message History, or go to Campaigns → One-time messages.
2. Find the message with the Scheduled status.
3. Open the actions menu (⋮) for the message and choose Delete message.

The message status changes to Canceled. If you only need to change the text or audience, choose Edit message instead. The send time can't be edited: to change it, delete the message and create a new one. See Edit or cancel scheduled one-time messages.

Cancel via API

• Messaging API v2 cancel or /cancelMessage: stops a message in the pending, waiting, or processing status. The message stays in Message History as canceled.
• /deleteMessage: cancels a scheduled message and removes it from Message History.

Both methods take the message code returned when the message was created.

Good to know

• If a message is already processing, cancelling stops only the deliveries that haven't gone out yet.
• Calling /deleteMessage on a message that has already been sent deletes the message and its statistics permanently, but it doesn't remove notifications that users have already received.
• Follow-up sends created with Resend to non-openers are not affected by /deleteMessage. Delete them separately (/cancelMessage cancels them together with the original).