Pub/Sub
For approximately the last year, due to a misconfiguration that affected a subset of accounts, app and account stats for history queries have been undercounted.
Specifically, if a user of one of the affected accounts made a single history query that returned 10 messages, the messages.outbound.rest.all.count stat should have been incremented by 10; instead it was incremented by only 1. (The corresponding data stat was not affected). Since billing is calculated from account stats, the affected accounts may also have been billed less than they should have been.
The fix for this will be rolled out this week.
We know customers expect us to provide stats that they can rely on, and this falls far below our normal standards, for which we apologise.