Flow_0ppdvks Flow_0ppdvks Flow_0bnlh0h Flow_039gvks Flow_039gvks Flow_0cfipfp Data_Default Flow_0oab4hv Quantity_Default Flow_0oab4hv Quantity_Default Quantity_LT_Zero Flow_1k10r1p quantity < 0 Quantity_LT_Zero quantity == 0 Flow_1k10r1p Flow_1j0zczv Flow_0cfipfp Flow_1j0zczv Data_Default value == "" Flow_1yafeny Flow_0bnlh0h Flow_1yafeny print(f"Value: {value} / Quantity {quantity}") Flow_0qzlrzx reason = "Error 1" Flow_0qzlrzx Flow_189pa5w Flow_189pa5w reason = "Error None" Flow_12218kd Flow_12218kd reason = "Cancel"