helpnote

noun
UK /ˈhelpnəʊt/
US /ˈhelpnoʊt/

A helpnote is a short message that tells you how to do something or where to get help.

I left a helpnote on the fridge so my sister knew how to feed the cat.


OTHER MEANINGS

2. A small written reminder you keep for yourself when you need help later.

He wrote a helpnote in his notebook about the password.

3. A note attached to a product that explains how to use it.

The helpnote on the box showed how to turn on the toy.

4. A short online message that gives advice or support to someone.

She posted a helpnote for new students on the class page.