Where most purchases happen.
WHY IT MATTERS MOST
Most Nigerian customers buy on phones.
A checkout that is difficult on a phone loses most of its sales.
WHAT TO CHECK
Fields large enough to tap
Correct keyboards: numeric for phone, email for email
The button reachable No horizontal scrolling Text readable without zooming
WHAT BREAKS
Multi-column layouts Fields side by side Date pickers Anything requiring precision
THE KEYBOARD POINT
A phone field bringing up a full keyboard instead of a number pad noticeably reduces completion.
Small detail, real effect.
SPEED
Checkout cannot be cached, so it is inherently slower.
Remove unnecessary scripts from it.
Test on mobile data, not wifi.
PAYMENT REDIRECTS
Returning from a gateway on mobile sometimes fails.
Test the full round trip on a phone.
WHAT TO DO
Complete a real purchase on your own phone, on mobile data, monthly.