Find and Remove Dependencies
If Paligo will not allow you to delete content because of dependencies, you will either need to keep the content or remove the dependencies.
You can use the Metadata information to find the dependencies, and then you will need to delete those manually in each topic, publication, or other component. To access the Metadata information, select the options menu ( ... ) for the reused publication or topic you want to delete, and then select Edit > Open Structure.
The dependencies information is in the Used in, Uses, and Related publications categories. To find out more, see Find Where Content is Reused.