Does the event venue have a designated time for each vendor to load-in? While some events have a flexible load-in schedule, others have a very strict time frame specifying each vendor's load-in slot.
If the footprint requires electrical connection, you want to check with the venue to see if they have a shore power hookup. For activations requiring heavy power usage, the venue may only have that particular connection source in designated areas. Even if you have an onboard generator, you want to confirm that you are permitted to use it at the event. Most indoor events disallow generator usage because of fire marshall code.
3. Union Labor
Convention centers in many of the major cities require that you use their union labor to move your assets into the building. This means that union workers will unload your event materials and transport them to your booth. If you have an experiential trailer, they may tell you to unhook the truck and use their equipment to position the trailer inside the show floor.
4. Back of the House & Storage
At outdoor events you can typically set up a back of the house area near your footprint. However, at convention centers you may have to pay for auxiliary storage for the event materials that will not be part of the front of the house display.
5. Boneyard for Commercial Vehicle Parking
Especially for downtown events of major cities, you want to find out where you can park the commercial vehicles during the show. Sometimes you will have to go to a marshaling yard or another designated parking lot several miles away to park the truck/trailer.