If you have multiple old sites in your “Organization-Sites”
you can try to delete in Rich Client.
But sometimes a site has a reference to something you cannot delete.
Go SQL Management Studio and select your Database (do this not in operation and make sure you have a proper backup) -- Search for site_puid select * from PPOM_IMC; Copy the puid of the old site you want to delete. -- then look for referene select * from POM_BACKPOINTER where to_uid='PasteYourUID_Here'; All listet entries are objects in the dabase which are linked to the site. you can use this UID in Richclient to search for (Window-Show View-Other-Diagnostics-Print Object) If you sure you can delete all these references: -- delete all references delete from POM_BACKPOINTER where to_uid='PasteYourUID_Here'; Restart your RichClient and try to delete the Site in Organization.