Clustering redshift measurements in comparison to the true n(z) for ten simulated Euclid Flagship tomographic photo-z bins. Measurements from YAW are shown in purple, with error bars indicating 95.5% confidence intervals. The measurements clearly trace the true n(z), albeit with some spurious local fluctuations. These fluctuations probably arise due to an incomplete galaxy bias correction methodology. The bias correction method used in this figure is method 2 (Sect. 3.1).