This study aims to investigate the failure mechanism and factors influencing the cliff stability in clastic soft rock coastal areas of the mid-western Adriatic Sea (Abruzzo, Central Italy). The study selects the Punta Ferruccio cliff, one of the cliffs on conglomerate with notches in the area, characterized by a height of 25 m, notch depth of 4 m, and width of 4 m, for analysis. The research focuses on the influence of notches induce by basal erosion at the cliff base and discontinuities, such as joints, on cliff stability. The numerical models of the cliffs are classified into two types: homogeneous material and heterogeneous material with the presence of joints.