Samsung

Samsung's One UI has sleeping and deep sleeping app lists that restrict background activity. Follow these steps to ensure Auto Call Scheduler runs without interruption.

Step 1: Remove from Sleeping Apps

1. Open Settings
2. Tap Battery (or Battery and device care > Battery)
3. Tap Background usage limits
4. Tap Sleeping apps
5. If Auto Call Scheduler is in the list, remove it

Step 2: Add to Never Sleeping Apps

1. In the same Background usage limits screen
2. Tap Never sleeping apps
3. Tap + Add
4. Select Auto Call Scheduler

This ensures Samsung never restricts the app's background activity.

Step 3: Disable Battery Optimization

1. Open Settings
2. Tap Apps
3. Tap the three-dot menu (top-right) and select Special access
4. Tap Optimize battery usage
5. Change the dropdown to All
6. Find Auto Call Scheduler and toggle it off (not optimized)

Step 4: Disable Adaptive Battery (Optional)

If calls still fail after the above steps:

1. Open Settings
2. Tap Battery (or Battery and device care > Battery)
3. Tap Adaptive battery
4. Toggle it off

note

Disabling Adaptive battery affects all apps, not just Auto Call Scheduler. Only do this if the previous steps didn't resolve the issue.

Verify It's Working

1. Create a test schedule set 2-3 minutes in the future
2. Close the app completely (swipe from recent apps)
3. Lock your phone
4. Wait for the scheduled time
5. If the call triggers, your settings are correct

If it still doesn't work, see Calls Not Triggering for additional steps.