We are using Firebase to send push notifications to mobile devices. Currently we want to resolve an issue when some notifications are not received, but are correctly sent with no firebase error.
After checking our logs, we noticed that when the notification was not received, firebase returns strange message id in response:
id for received notification: projects/{our-project}/messages/1610712776892734
id for lost notification: projects/{our-project}/messages/0:1610453737216336%e29f3a03e29f3a03
So my question is this - How does the different id format impact push notification deliverability?