Change message notifications on iPhone
In Settings , you can set up and manage message notifications for the Messages app
and filter unknown senders.
Manage notifications for messages
Go to Settings
> Notifications > Messages.
Choose options, including the following:
Turn Allow Notifications on or off.
Set the position and locations of message notifications.
Choose the alert sound for message notifications.
Choose when message previews should appear.
Set a Focus and schedule a summary of your notifications
Focus is a feature that helps you concentrate on a task by minimizing distractions. When you need to focus, or step away from your iPhone, Focus can temporarily silence all notifications—or allow only specific notifications (for example, ones that match your task).
When you turn on a Focus, Messages lets apps and people know you’re busy. If something is urgent, people can choose to notify you anyway.
You can also schedule a summary of your notifications to arrive each day at a specific time. This helps you to reduce interruptions throughout the day, and then quickly catch up at a time more convenient for you.
See Set up Focus on iPhone and Schedule a notification summary.
Set the alert sound for messages
Go to Settings
> Sounds & Haptics (on supported models) or Sounds (other models).
Tap Text Tone, then do one of the following:
Tap Vibration, then choose an option.
Tap a sound below Alert Tones.
Tap Tone Store to download an alert sound from the iTunes Store.
Assign a different ringtone to a contact
Open Contacts, then select a contact.
Tap Edit, then tap Text Tone.
Choose an option below Alert Tones.
To allow alerts for messages sent by this contact even when Do Not Disturb is on, turn on Emergency Bypass.
Mute notifications for a conversation
In the Messages list, touch and hold a conversation.
Tap Hide Alerts.