Status 400 when pushing updates

[axjowo]

After generating a pass and saving it in my wallet I want to send push notifications to the Pass. I managed to get the pushToken via webservice, but template.pushUpdates(myToken) returns a 400 status code
[Object: null prototype] { ':status': 400, 'apns-id': 'FD4215FA-6D82-F2F1-952A-CE516A5146FA', [Symbol(nodejs.http2.sensitiveHeaders)]: [] }

[mo9a7i]

what webservice implementation are u using?

[LightDev1]

@axjowo How you registered for updates?