High-resolution manometry (HRM) and 24-hour pH/impedance studies of the oesophagus have become more widely available and are a useful tool for investigating symptoms, leading to better decision-making and ultimately improved outcomes. Advances in technology have made analysis more intuitive, and efforts have been made to better classify motility disorders and reflux exposure. However, pitfalls remain for the novice, and care is needed that the correct diagnosis is made before being applied to clinical management.