What is Fair Use?
Each Cloud project and its attachments should not be larger than 5 GB. Fair Use means that there's not technical limit to keep you from going over 5 GB. However, we ask you to not do so in the interest of all Citavi users. If a many users exceed this limitation often, we would have to introuduce fees for heavy use. We would like to avoid this if possible.
In Citavi 6.2 and later you can see how much storage space your Cloud project is using. Click File > This project > Properties > Statistics. Please also see paragraph 6 in the license agreement.