Sorry, the page at https://success.planview.com/Planview_Enterprise_One/De/30Projekte_und_Aktivit%C3%A4ten/Aktivit%C3%A4ten_abschlie%C3%9Fen/Aktivit%C3%A4ten_abschlie%C3%9Fen_oder_abbrechen/Status_%C3%BCber_die_R%C3%BCckmeldemaske_%C3%A4ndern could not be found.