Automated insulin delivery systems (AID) represent a major advance in the treatment of type 1 diabetes. These systems automate insulin delivery by integrating continuous glucose monitoring, control algorithms and insulin pump actions. Despite their advances, there is a need to adjust the settings in specific situations, either by using special features or even by manually adjusting the dose. The article provides an overview of the possibilities of adjustments in the insulin dosing for intercurrent disease, alcohol consumption and increased physical activity for four certified automatic insulin delivery systems available in the Czech Republic.