My Account-address book2.jpg
Same comment
If customer already ticked checkboxes for Address 1, but when customer edits Address 2 and wants to tick checkbox for Address 2, system needs to show a warning message (pop-up) when SAVE to say “Address 1 has been set as the default shipping and billing address, are you sure that you would like to make this change?” YES (SAVE) / NO (No SAVE, stays on page).