On this page there’s 3 highlights (view in Baymard Premium) outlining what H&M are doing right and wrong.
(Tip: use the arrows above or on your keyboard to navigate all 207 address validator examples.)

The screenshot was taken on May 11, 2019 and depicts H&M’s Address Validator. In total, we’ve reviewed 88 of H&M’s page designs. To see them all, visit the full H&M UX case study.