diff --git a/doc/15-troubleshooting.md b/doc/15-troubleshooting.md
index 33f7b81a7..4cc733854 100644
--- a/doc/15-troubleshooting.md
+++ b/doc/15-troubleshooting.md
@@ -950,95 +950,6 @@ curl -k -s -u root:icinga -H 'Accept: application/json' -X POST 'https://localho
```
-### Analyze Notification Result
-
-> **Note**
->
-> This feature is available since v2.11 and requires all endpoints
-> being updated.
-
-Notifications inside a HA enabled zone are balanced between the endpoints,
-just like checks.
-
-Sometimes notifications may fail, and with looking into the (debug) logs
-for both masters, you cannot correlate this correctly.
-
-The `last_notification_result` runtime attribute is stored and synced for Notification
-objects and can be queried via REST API.
-
-Example for retrieving the notification object and result from all `disk` services using a
-[regex match](18-library-reference.md#global-functions-regex) on the name:
-
-```
-$ curl -k -s -u root:icinga -H 'Accept: application/json' -H 'X-HTTP-Method-Override: GET' -X POST 'https://localhost:5665/v1/objects/notifications' \
--d '{ "filter": "regex(pattern, service.name)", "filter_vars": { "pattern": "^disk" }, "attrs": [ "__name", "last_notification_result" ], "pretty": true }'
-{
- "results": [
-
- {
- "attrs": {
- "last_notification_result": {
- "active": true,
- "command": [
- "/etc/icinga2/scripts/mail-service-notification.sh",
- "-4",
- "",
- "-6",
- "",
- "-b",
- "",
- "-c",
- "",
- "-d",
- "2019-08-02 10:54:16 +0200",
- "-e",
- "disk",
- "-l",
- "icinga2-agent1.localdomain",
- "-n",
- "icinga2-agent1.localdomain",
- "-o",
- "DISK OK - free space: / 38108 MB (90.84% inode=100%);",
- "-r",
- "user@localdomain",
- "-s",
- "OK",
- "-t",
- "RECOVERY",
- "-u",
- "disk"
- ],
- "execution_end": 1564736056.186217,
- "execution_endpoint": "icinga2-master1.localdomain",
- "execution_start": 1564736056.132323,
- "exit_status": 0.0,
- "output": "",
- "type": "NotificationResult"
- }
- },
- "joins": {},
- "meta": {},
- "name": "icinga2-agent1.localdomain!disk!mail-service-notification",
- "type": "Notification"
- }
-
-...
-
- ]
-}
-```
-
-Example with the debug console:
-
-```
-$ ICINGA2_API_PASSWORD=icinga icinga2 console --connect 'https://root@localhost:5665/' --eval 'get_object(Notification, "icinga2-agent1.localdomain!disk!mail-service-notification").last_notification_result.execution_endpoint' | jq
-
-"icinga2-agent1.localdomain"
-```
-
-Whenever a notification command failed to execute, you can fetch the output as well.
-
-
## Feature Troubleshooting
### Feature is not working