The Five
The five most important developments event leaders should know this week.
The Register — Copilot web outage and resilience test · 10 September 2026
Copilot went down. Does your event team have an AI continuity plan?
Microsoft's Copilot web service was unavailable for about 100 minutes overnight on 9–10 September, returning a Cloudflare routing error. At around the same time, some Copilot Chat users lost suggested prompts during what Microsoft described to reporters as a separate resilience test. On 11 September, Microsoft investigated another access disruption under incident CP1470554; users reported failed access, blank replies and incomplete content. NHSmail also logged a Copilot Chat degradation alert on 10 September. These should not be collapsed into one dramatic global failure. Public reporting does not establish a user count, Microsoft has not published a root-cause review for the incidents we could verify, and the public Copilot website is not the same service surface as Microsoft 365 Copilot. What the sequence does establish is more useful: AI availability is no longer an abstract technology question when venue comparisons, RFP analysis, briefs, meeting summaries, schedules and reporting are beginning to depend on it.
Why it matters
SO WHAT FOR CORPORATE EVENT LEADERS? Separate the AI layer from the underlying work. If Copilot is unavailable, your team should still be able to reach the current brief, venue proposals, run of show, supplier contacts and approved templates. Save critical prompts and agent instructions outside the AI platform, name an owner for AI-dependent workflows and agree the manual fallback for anything that matters during show week. This is not a case for an elaborate disaster-recovery programme. It is the same proportionate discipline you already apply to registration, connectivity and production.
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- 02
Hilton — Waldorf Astoria London Admiralty Arch reservations · 17 June 2026
Three new hotels, but which event brief does each one actually suit?
- 03
Cvent — 2026 product innovation announcement · 14 July 2026
The corporate event AI stack: four jobs where the tool should remove work
- 04
IMEX America — official show information · Accessed 12 September 2026
IMEX America is next month. Stop planning it manually
- 05
PheedLoop Event Data Lab Report 05 · 29 April 2026
Autumn 2026: flat budgets, harder proof — and the cost of the empty chair
Prompt of the Week
One AI prompt worth stealing this week.
Build my IMEX America plan
Copy + paste this prompt
Why use it
Most show planning starts with available diary slots. This starts with the three outcomes that justify the trip, then makes every meeting, session and follow-up compete for a place against them.
Before uploading budgets, contracts or confidential company information to an AI platform, follow your organisation’s AI and data-security policies.