friendly reminder
noun phraseUK /ˈfrɛndli rɪˈmaɪndə/
US /ˈfrɛndli rɪˈmaɪndər/
A kind message that helps you remember something.
Just a friendly reminder to bring your lunch to school tomorrow.
OTHER MEANINGS
2. A soft way to tell someone to do something they forgot.
A friendly reminder that the library books are due on Friday.
3. A message sent to help people remember a rule or plan.
The teacher sent a friendly reminder about the class trip.
4. A polite note that repeats important information.
Here is a friendly reminder about our meeting time.