Change volume for individual app notification categories

[Motoring]

I just upgraded from the S21+ to the S25+

I have my home alarm system notify me if the alarm is triggered.

On my S21+, I could go to the individual category and adjust the volume to max, ONLY for that notification category. When I do this on my S25+, it changes the entire phone's notification volume. What am I doing wrong? I find it hard to believe Samsung got rid of this feature. 

Thank you for your consideration. 

[Fiona26]

Enable Advanced Notification Categories:

Go to your phone's Settings.

Tap on Notifications.

Tap on Advanced.

Toggle on Manage notification categories for each app.

Adjust the Specific App's Notification Volume:

Go back to the main Settings menu.

Tap on Apps.

Scroll down and select your home alarm system's app.

Tap on Notifications.

Tap on Notification categories.

Find the specific category for your alarm trigger notifications and tap on it.

You should now see a volume slider or an option to adjust the sound for that specific category, allowing you to set it to max without affecting other notifications.

[Motoring]

This is exactly how I did it on my S21+. However, when I do that now on my S25+, it affects the whole phone's master notification volume slider. 

[Fiona26]

https://www.samsung.com/us/support/answer/ANS10002521/

Does say this in the link.
Not all apps allow custom notification sounds. Some apps will allow you to adjust the sounds from their own settings, instead of the phone settings.

Could be the reason.

[Motoring]

Thank you for the reply. This is the same app that I had on my S21+ where it worked flawlessly