The best thing about inflatable tents for camping is that you don't have to deal with poles anymore and most of the parts are already incorporated into the tent. Also, most models do not require complicated assembly procedures.
Before setting the tent up, you need to ensure that the ground is clear from stones and sharp objects which might puncture the tent. The ground should be plain and flat as much as possible.
When the ground is ready, it's recommended to spread a tent footprint or tarp on the ground as additional protection to the tent's flooring. Doing so also helps keep the tent dry and clean underneath.
Once the groundwork is done, position the tent properly. Using a pump, inflate the beams of the tent. Some tents use only one valve while others may have separate valves that you need to inflate.
Make sure to achieve the recommended psi of the manufacturer. Your tent should be up in about 10-20 minutes depending on the size.