How auto-update passbook work?

Question

I'm implementing a solution to generate pass for passbook . I can generate the pass and update it manually via the webServiceURL field and over https. However, if the pass has the automatic update option checked and if i update a field in the pass, nothing happen. No notification, no update. I don't know why because if i launch an update manually it works.

Answer 1

You have to send a push notification to registered devices, i.e. that has your pass installed (see Your Server Sends a Push Notification When Something Changes), assuming that you have implemented Passbook registration end point (see Devices Register for Updates and Registering a Device to Receive Push Notifications for a Pass