Impact/Best Practices when "US Zoho Services Availability - Incident, Zoho Deluge is down"

Impact/Best Practices when "US Zoho Services Availability - Incident, Zoho Deluge is down"

I've been seeing this more recently and I've been wondering exactly what that means/affects and how to best address it when it does. I can check for function failures, but are all function calls when this happens logged a failure, or are errors silently happening and I have no way to check/address them?

What if one happens as a workflow or kiosk action - will delayed actions pause until the original function calls can be made?