This tool allows you to find
Zombie smart links are smart links which point to items which done exist (anymore).
Zombie images are images which are on a third party server. These are problematic, because during the report generation, our server might not have the right to access these, so they will be missing in the generated documents.
Invalid characters are characters which cannot be printed. In case data gets imported (maybe through the api or excel), some items might these unprintable characters and printing will fail.
In the Advanced Features Project Setting, you can enable the cleanup tool
Once enable, the tool can be found in the TOOLS section: