Instructions may be visible on desktop but wrap poorly, overlap fields, or disappear on small screens. Users can miss required formats or validation rules.
Test common mobile widths and zoom levels, check label and help text relationships, error placement, touch targets, and screen reader order. Complete the form using a narrow viewport.
Use responsive layouts that preserve labels and instructions without horizontal scrolling. Keep important requirements visible before input and recheck after validation errors.
Informatix Systems provides web accessibility and software development services. We can assess the affected environment, trace the issue, and help plan a practical improvement. Contact us with the system involved, when the issue began, and non-sensitive error details.