We assessed the need for information from staff that would be attending, and decided the best solution would be a company-wide email linking to a bespoke microsite for registration. This would enable us to define and set requirements, and gather all necessary data for the production of the event. 
The email and site needed to be informative of the day as it would be the first time many staff members would be receiving any comms or context. We also wanted to enable staff to vote for their Ace of Aces nominee directly through their registration application. But most importantly we needed to gather information around dietary requirements and session selections, so that catering quantities and seating allocation could be adequately managed. 
When testing our first prototype we ascertained a need to visualise a limit on seats available and inform staff that they could miss out on their preferred talks. 
We decided on a threshold of 50 remaining seats, after which additional messaging would notify staff that there was limited seating remaining. We worked with the engineers to build this update into the next iteration.
We kept all branding simple and bold, making sure it was consistent across all - from the largest banner to the smallest coat room tag. 
We received positive feedback during and post the event, specifically regarding the detail and scale of all the collateral, the consistency across every touchpoint, and how it all contributed to the overall success of the event.