We've become aware of a potential issue with Whatsapp DLRs receiving elevated 4xx responses with error code 470 from wa-container. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.
We have fully investigated the SMS delivery delays when sending messages to multiple networks in Colombia and determined that the impact was limited to a small set of customers, who will be contacted individually to address any concerns. As such, we are closing this incident.
We are no longer experiencing SMS delivery delays when sending messages to H3G in United Kingdom of Great Britain and Northern Ireland. This incident has been resolved.
We are no longer experiencing SMS delivery delays when sending messages to Smart Network in Philippines over a subset of pre-registered Sender ID. This incident has been resolved.