hi there, disabling the app didn’t worked :
255|heroltexx:/ $ pm disable foundation.e.calendar
Exception occurred while executing 'disable':
java.lang.SecurityException: Shell cannot change component state for foundation.e.calendar/null to 2
at com.android.server.pm.PackageManagerService.setEnabledSetting(PackageManagerService.java:24283)
at com.android.server.pm.PackageManagerService.setApplicationEnabledSetting(PackageManagerService.java:24079)
at com.android.server.pm.PackageManagerShellCommand.runSetEnabledSetting(PackageManagerShellCommand.java:2194)
at com.android.server.pm.PackageManagerShellCommand.onCommand(PackageManagerShellCommand.java:240)
at com.android.modules.utils.BasicShellCommandHandler.exec(BasicShellCommandHandler.java:97)
at android.os.ShellCommand.exec(ShellCommand.java:38)
at com.android.server.pm.PackageManagerService.onShellCommand(PackageManagerService.java:24948)
at android.os.Binder.shellCommand(Binder.java:950)
at android.os.Binder.onTransact(Binder.java:834)
at android.content.pm.IPackageManager$Stub.onTransact(IPackageManager.java:4818)
at com.android.server.pm.PackageManagerService.onTransact(PackageManagerService.java:8937)
at android.os.Binder.execTransactInternal(Binder.java:1184)
at android.os.Binder.execTransact(Binder.java:1143)
maybe this app is considered as an important one and cannot be disabled.
But, I solved the problem ! I delete the DAVx account and re-add it then the multiple agenda problem disapear !
Then I remove all authorizations (especially access to the agenda) of the app foundation.e.calendar, then I hope I will not receive more notification in double.
So at the end the problem is solved, but I still have the feeling that it is not easy to use an alternative app to the one chosen by /e/OS because it is not possible to remove it.
Thanks for the help