Checkout abandons spike when delivery options reshuffle on address entry
On step 2 of checkout, four of six testers paused, scrolled back to verify the basket, or abandoned. The selected delivery option silently changed when the postcode resolved to a different zone, with no on-screen confirmation.
- Cohort
- 4/6
- Dwell
- 62s
- Abandon
- 38%
hesitated
baseline 18s
baseline 11%
Recommended fix
Lock the chosen delivery option until the user confirms a zone change, with an inline notice. ~3 hours engineering, ~1 hour content.








