Change Slug Before Hook - avoid error message by returning a modified Slug

[steirico]

This should solve your problem:

Cancel adding a Page in PageModel - hookPageCreate

Sorry for the late reply. According to my tests the problem can be solved in hookPageCreate as follow: try { $page->changeSlug(Str::slug($vorname . '-' . $nachname)); } catch (Kirby\Exception\DuplicateException $e) { $page->delete(true); }