It is imperative that all of your listing details are up to so that campers know what to expect when staying at your property. This helps them to understand whether or not you are providing accommodations for them (such as a cabin, tent, or yurt). If you do not provide accommodations it can also help them to identify which type of accommodation you allow them to bring (RVs, tents, or car camping).
Log in to your Hipcamp account, go to your Host Dashboard, click on Listings and select Edit next to your listing. Once you are in the edit view, click on Accommodations from the menu along the left-hand side of your screen. In the tabs of the first box, you can indicate where or not it is a campsite or if you offer a provided accommodation (you can select more than one). You can then further indicate what kind of accommodation your offer or what campers are able to bring to the campsite to stay in. Here is a GIF for reference: