A label is a short description of a field. Labels are not help text, and they shouldn’t be used to provide instruction, but they should be meaningful and clearly indicate what is expected. Labels should be:
Placed above or beside the form field
Short and succinct (1–3 words)
Written in sentence case (the first word capitalized, the rest lowercase)
What is your email address?
My phone number is:
Help text provides extra guidance to people filling out a form field. This text is easy for people to ignore, so merchants should not need to depend on it to fill out a form. As with all forms, help text should be succinct and easy to read.