diff --git a/.werks/17364.md b/.werks/17364.md
new file mode 100644
index 00000000000..39e523e315d
--- /dev/null
+++ b/.werks/17364.md
@@ -0,0 +1,22 @@
+[//]: # (werk v2)
+# prism alerts with multiple expired licenses
+
+key        | value
+---------- | ---
+date       | 2024-11-15T09:57:59+00:00
+version    | 2.3.0p22
+class      | fix
+edition    | cre
+component  | checks
+level      | 1
+compatible | yes
+
+You're affected by this werk in case you have multiple expired licenses on your prism system.
+
+A possible backtrace may look like:
+```
+File "/omd/sites/SITE/lib/python3.12/site-packages/cmk/agent_based/v1/_checking_classes.py", line 447, in _create_result_fields
+  raise ValueError("'\\n' not allowed in 'summary'")
+```
+
+The problematic newline characters are now rendered in a compatible way and the check continues to work.
diff --git a/cmk/base/plugins/agent_based/prism_alerts.py b/cmk/base/plugins/agent_based/prism_alerts.py
index 42135cf28d2..7ebcc8e9e92 100644
--- a/cmk/base/plugins/agent_based/prism_alerts.py
+++ b/cmk/base/plugins/agent_based/prism_alerts.py
@@ -29,7 +29,7 @@ def parse_prism_alerts(string_table: StringTable) -> Section:
 
         full_context["timestamp"] = entity["created_time_stamp_in_usecs"]
         full_context["severity"] = entity["severity"]
-        full_context["message"] = message
+        full_context["message"] = message.replace("\n", ", ")
 
         parsed.append(full_context)
 
diff --git a/tests/unit/cmk/base/plugins/agent_based/test_prism_alerts.py b/tests/unit/cmk/base/plugins/agent_based/test_prism_alerts.py
index 0bfa2e0fed7..f91424d5128 100644
--- a/tests/unit/cmk/base/plugins/agent_based/test_prism_alerts.py
+++ b/tests/unit/cmk/base/plugins/agent_based/test_prism_alerts.py
@@ -118,8 +118,8 @@ def test_newline_in_message(
             "cluster_id": "9876",
             "cluster_uuid": "123-123-123",
             "message": "Detailed license expiry info: LIC-1234 - 1.00 NODE Pro "
-            "expiring on 2025-01-31\n"
-            "LIC-987654321 - 1.00 NODE Pro expiring on 2025-01-31",
+            "expiring on 2025-01-31, LIC-987654321 - 1.00 NODE Pro expiring on "
+            "2025-01-31",
             "ncc_version": "123456789",
             "nos_version": "1.2.3.4",
             "pre_expiry_msg": "LIC-1234 - 1.00 NODE Pro expiring on 2025-01-31\n"
@@ -129,14 +129,23 @@ def test_newline_in_message(
         }
     ]
     monkeypatch.setattr(time, "localtime", time.gmtime)
-    with pytest.raises(ValueError) as excinfo:
-        list(
-            check_prism_alerts(
-                params={},
-                section=section,
-            )
+    assert list(
+        check_prism_alerts(
+            params={},
+            section=section,
         )
-    assert "'\\\\n' not allowed in 'summary" in str(excinfo)
+    ) == [
+        Result(state=State.OK, summary="1 alerts"),
+        Result(
+            state=State.OK,
+            summary="Last worst on 2024-11-10 14:53:14: 'Detailed license expiry info: LIC-1234 - 1.00 NODE Pro expiring on 2025-01-31, LIC-987654321 - 1.00 NODE Pro expiring on 2025-01-31'",
+        ),
+        Result(state=State.OK, notice="\nLast 10 Alerts\n"),
+        Result(
+            state=State.OK,
+            notice="2024-11-10 14:53:14\tDetailed license expiry info: LIC-1234 - 1.00 NODE Pro expiring on 2025-01-31, LIC-987654321 - 1.00 NODE Pro expiring on 2025-01-31",
+        ),
+    ]
 
 
 @pytest.mark.parametrize(