Klaviyo profile sync restored after a production outage

Klaviyo profile sync had been failing in production since September 3, after an underlying dependency update changed the shape of the data Subi's Klaviyo SDK client received back from Klaviyo, and the client wasn't reading it correctly.

That's now fixed: Subi's Klaviyo client reads the SDK's response the way the current dependency version actually returns it, so profile syncs to Klaviyo go through again as expected. If your shop uses the Klaviyo integration, profile updates should now be syncing normally; no action is needed on your end.

Along the way, the connection Subi's backend uses to send transactional email now also has a 10-second timeout, so a slow response from that provider can no longer hold up other work.