Why is sendMass not working?

Question

Classmates

When trying to send notifications to players, an uninformative message appears
"error_code": 2,
"error_msg": "SERVICE : Service is temporary unavailable., logged by ID : APIERR1432714775826_918"
And so in two games.

Answer 1

In this case, expires was passed in the wrong format (see notifications.sendMass ).
Let's think about how we can make the description of such an error more informative, thanks for the report.