Delayed notification

[AshrafeuzzamanShihab]

I've been noticing that messengers massage notifications are getting delayed when the app stays idle and connected to wifi or mobile data for a while but whatsapp gives notification instantly and I didn't have to change its battery ussage at all

Did anyone find this issue on your phones

I've put it on never sleeping list and and also made its battery ussage to unrestricted 

But still it doesn't help

Did any one solved this issue???

Samsung haven't replied to my error report

[cs_member8]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We acknowledge your query and apologize for the inconvenience caused to you and will surely assist you regarding the same. We would request you to register your concern in Samsung Members Application. So, that our concern team gets back to you as soon as possible.

Please follow this path to register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback >Ask question

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support

[AshrafeuzzamanShihab]

I've fixed the problem by myself
But I appreciate your help

[Anonymous]

How ???

[AshrafeuzzamanShihab]

Just make the app never sleeping in device care or got to app settings then bettery and set it to "unrestricted "