Morning all

I only get the push notifications when I open the Sunsynk app, notifications are on in the app as well as on the phone

Using Samsung S24

Looks like no Push server configured to do this

Anyone else able to receive when App is closed?

Thanx

I do get notification to my cellphone when grid power is lost, and when it's again reconnected, but that's all... Don't really need anything else, so this has never bothered me.

Yes, that is all i want too, but I only get them if I open the app, so don't know when grid power has been lost unless I open the app

Most of the time it's not the fault of the App itself, Push service or server, but it's about the Android Power Management.

This is how to test it:

• Open the Sunsynk App, browse it a little

• Close the Sunsynk App via switching to phone's home screen

• DO NOT ALLOW the phone to lock or screen to turn black

• Turn of the grid power, in order to generate Push notification

• Notification should arrive in a second or two

BACKGROUND:

Modern phones have very small batteries and power hungry CPUs, therefore Android OS introduced the internal mechanism called DOZE. When an app is not running in the front-end, Android puts it into sleep after a couple of minutes. Even worse if the screen is off or phone locked - then the most of the apps are deeply hibernated after five minutes or so. Therefore, their resident parts are not able to receive Push notifications. Then, there's a DOZE scheduler running, that wakes-up each app for a split of a second regularly, giving it opportunity to check for the Push notifications.

On top of that, whenever Android "thinks" that an app is useless, it will kill it completely and clean the RAM too. In order not to scare users too much, there's a static internal whitelist that contains apps that should never be killed and never put into a deep sleep. This list typically contains PhoneDialer, WhatsApp, Facebook Messenger, etc. That's the reason why for example WhatsApp Push notifications are arriving quite quickly, while the other apps that the phone manufacturer did not put on it's list are starving. Sunsynk App being a perfect example.

Shame is, that over the years multiple layers of Android Power Management were introduced on top of classic DOZE. Not to mention that silicon designers, like Qualcomm, Samsung or MediaTek, started to add their own "optimization" bloatware, that does very similar job of freezing and killing apps, but in parallel. For example, on the MediaTek-based phones it's called DuraSpeed.

To add insult to the injury, there's no way how to check and configure all these layers in the GUI.

• At least DuraSpeed (not relevant for Samsung) has an entry in the phone's Settings, but sometimes it works, sometimes not.

• Battery Manager has GUI on some Android versions too, but there are a lot of phones where it's configuration does exactly nothing.

• Android Power Management is fully configurable only via developers CLI (like Android Debug Bridge).

The only thing available to Samsung user is this:

• Go to the Samsung settings

• Select Apps

• Find Sunsynk App and click on it

• in the App info screen disable "Manage if unused"

• in the App info screen scroll to "Battery" and click on it

• in the Battery select "Unrestricted"

Whether the Android Power Management will honor the above setting is never sure, but that's all you can do as an user.

Good luck

Edited October 30, 2025Oct 30 by Youda

Since you said notifications are enabled both in the app and in the phone settings, here are some deeper checks:

1. Battery / background optimisation settings
   On Samsung phones, Android aggressively limits background activity to preserve battery. If Sunsynk is being “paused” when the app is closed, push notifications might not get delivered.

   • Go to Settings → Apps → Sunsynk → Battery → “Allow background activity” / “Unrestricted” (or similar)

   • Ensure the app is not set to “Optimise” (which limits it) or to hibernate when unused.

2. App permissions + notifications

   • Confirm under Settings → Notifications that the Sunsynk app is allowed to send Show as priority or Pop-up notifications.

   • In the app itself, check its own notification settings (you have done this) and any “test notification” function if available.

   • Also consider turning off any “Do not disturb” or “Focus” mode scheduling that might block notifications when the phone is locked.

3. Internet / data connection

   • If the phone switches networks (WiFi ↔ mobile) or if the connection is weak, push messages might get delayed or dropped.

   • Try explicitly testing while on WiFi vs mobile data.

4. App version & firmware compatibility

   • Ensure the Sunsynk app is updated to the latest version from the Google Play Store.

   • Also check if your inverter / data logger firmware has any dependencies (some users have reported that older firmware doesn’t support certain notifications).

   • On the manufacturer’s support page: there is an article How to turn on push notifications which may verify correct setup.

To r=test force close the App and cause a known event(Grid disconnect ) and see if you get the push notification while the phone is locked.