Notification sound

[Mikhaelivanov]

Hello

I am using s9 plus for 4 years. About 7 months I hear a notification sound from my phone without knowing the source of the sound. 

Does anyone have the same issue? 

[Samsung_Ruby]

Hi Mikhaelivanov, https://www.samsung.com/us/support/answer/ANS00089085/ might have an answer for you! If not please let me know and I will reach out to our technical support team - Thanks!