A roughing operation "G67" (2D/3D pockets), a semi-finishing operation "G67" (3D pocket) or a finishing operation "G68" (2D/3D pocket) has been programmed without having previous programmed the call to an "Irregular pocket canned cycle with islands (G66)".

When working with irregular pockets, before programming the aforementioned cycles, the call to the "Irregular canned cycle with islands (G66)" must be programmed.