Once signed in, you can work offline for up to 28 days before the software needs to "ping" the server again. 🚀 How to Activate SketchUp Pro 2023

: Improved performance when saving large models by utilizing multiple CPU cores, reducing the "application hang" time during auto-saves or manual saves.

: If you have an older perpetual license, you can find your details by opening SketchUp Pro and navigating to Help > License > License info to see your serial number.