diff --git a/harmony/src/domain/topology/oberservability/monitoring.rs b/harmony/src/domain/topology/oberservability/monitoring.rs
index 1bad370..9ef77f4 100644
--- a/harmony/src/domain/topology/oberservability/monitoring.rs
+++ b/harmony/src/domain/topology/oberservability/monitoring.rs
@@ -77,7 +77,7 @@ pub trait AlertReceiver<S: AlertSender>: std::fmt::Debug + Send + Sync {
     fn name(&self) -> String;
     fn clone_box(&self) -> Box<dyn AlertReceiver<S>>;
     fn as_any(&self) -> &dyn Any;
-    fn as_alertmanager_receiver(&self) -> AlertManagerReceiver;
+    fn as_alertmanager_receiver(&self) -> Result<AlertManagerReceiver, String>;
 }
 
 #[derive(Debug)]
diff --git a/harmony/src/modules/monitoring/alert_channel/discord_alert_channel.rs b/harmony/src/modules/monitoring/alert_channel/discord_alert_channel.rs
index 550ce46..e455e76 100644
--- a/harmony/src/modules/monitoring/alert_channel/discord_alert_channel.rs
+++ b/harmony/src/modules/monitoring/alert_channel/discord_alert_channel.rs
@@ -10,6 +10,7 @@ use serde::Serialize;
 use serde_json::json;
 use serde_yaml::{Mapping, Value};
 
+use crate::infra::kube::kube_resource_to_dynamic;
 use crate::modules::monitoring::kube_prometheus::crd::crd_alertmanager_config::{
     AlertmanagerConfig, AlertmanagerConfigSpec, CRDPrometheus,
 };
@@ -36,7 +37,7 @@ pub struct DiscordWebhook {
 }
 
 impl DiscordWebhook {
-    fn get_receiver_config(&self) -> AlertManagerReceiver {
+    fn get_receiver_config(&self) -> Result<AlertManagerReceiver, String> {
         let secret_name = format!("{}-secret", self.name.clone());
         let webhook_key = format!("{}", self.url.clone());
 
@@ -53,8 +54,8 @@ impl DiscordWebhook {
             ..Default::default()
         };
 
-        AlertManagerReceiver {
-            additional_ressources: vec![],
+        Ok(AlertManagerReceiver {
+            additional_ressources: vec![kube_resource_to_dynamic(&secret)?],
 
             receiver_config: json!({
                 "name": self.name,
@@ -69,7 +70,7 @@ impl DiscordWebhook {
                     }
                 ]
             }),
-        }
+        })
     }
 }
 
@@ -94,21 +95,21 @@ impl AlertReceiver<OpenshiftClusterAlertSender> for DiscordWebhook {
         todo!()
     }
 
-    fn as_alertmanager_receiver(&self) -> AlertManagerReceiver {
+    fn as_alertmanager_receiver(&self) -> Result<AlertManagerReceiver, String> {
         self.get_receiver_config()
     }
 }
 
 #[async_trait]
 impl AlertReceiver<RHOBObservability> for DiscordWebhook {
-    fn as_alertmanager_receiver(&self) -> AlertManagerReceiver {
+    fn as_alertmanager_receiver(&self) -> Result<AlertManagerReceiver, String> {
         todo!()
     }
 
     async fn install(&self, sender: &RHOBObservability) -> Result<Outcome, InterpretError> {
         let ns = sender.namespace.clone();
 
-        let config = self.get_receiver_config();
+        let config = self.get_receiver_config()?;
         for resource in config.additional_ressources.iter() {
             todo!("can I apply a dynamicresource");
             // sender.client.apply(resource, Some(&ns)).await;
@@ -171,7 +172,7 @@ impl AlertReceiver<RHOBObservability> for DiscordWebhook {
 
 #[async_trait]
 impl AlertReceiver<CRDPrometheus> for DiscordWebhook {
-    fn as_alertmanager_receiver(&self) -> AlertManagerReceiver {
+    fn as_alertmanager_receiver(&self) -> Result<AlertManagerReceiver, String> {
         todo!()
     }
     async fn install(&self, sender: &CRDPrometheus) -> Result<Outcome, InterpretError> {
@@ -252,7 +253,7 @@ impl AlertReceiver<CRDPrometheus> for DiscordWebhook {
 
 #[async_trait]
 impl AlertReceiver<Prometheus> for DiscordWebhook {
-    fn as_alertmanager_receiver(&self) -> AlertManagerReceiver {
+    fn as_alertmanager_receiver(&self) -> Result<AlertManagerReceiver, String> {
         todo!()
     }
     async fn install(&self, sender: &Prometheus) -> Result<Outcome, InterpretError> {
@@ -281,7 +282,7 @@ impl PrometheusReceiver for DiscordWebhook {
 
 #[async_trait]
 impl AlertReceiver<KubePrometheus> for DiscordWebhook {
-    fn as_alertmanager_receiver(&self) -> AlertManagerReceiver {
+    fn as_alertmanager_receiver(&self) -> Result<AlertManagerReceiver, String> {
         todo!()
     }
     async fn install(&self, sender: &KubePrometheus) -> Result<Outcome, InterpretError> {
diff --git a/harmony/src/modules/monitoring/alert_channel/webhook_receiver.rs b/harmony/src/modules/monitoring/alert_channel/webhook_receiver.rs
index c1d32b2..a141df0 100644
--- a/harmony/src/modules/monitoring/alert_channel/webhook_receiver.rs
+++ b/harmony/src/modules/monitoring/alert_channel/webhook_receiver.rs
@@ -31,7 +31,7 @@ pub struct WebhookReceiver {
 
 #[async_trait]
 impl AlertReceiver<RHOBObservability> for WebhookReceiver {
-    fn as_alertmanager_receiver(&self) -> AlertManagerReceiver {
+    fn as_alertmanager_receiver(&self) -> Result<AlertManagerReceiver, String> {
         todo!()
     }
     async fn install(&self, sender: &RHOBObservability) -> Result<Outcome, InterpretError> {
@@ -100,7 +100,7 @@ impl AlertReceiver<RHOBObservability> for WebhookReceiver {
 
 #[async_trait]
 impl AlertReceiver<CRDPrometheus> for WebhookReceiver {
-    fn as_alertmanager_receiver(&self) -> AlertManagerReceiver {
+    fn as_alertmanager_receiver(&self) -> Result<AlertManagerReceiver, String> {
         todo!()
     }
     async fn install(&self, sender: &CRDPrometheus) -> Result<Outcome, InterpretError> {
@@ -164,7 +164,7 @@ impl AlertReceiver<CRDPrometheus> for WebhookReceiver {
 
 #[async_trait]
 impl AlertReceiver<Prometheus> for WebhookReceiver {
-    fn as_alertmanager_receiver(&self) -> AlertManagerReceiver {
+    fn as_alertmanager_receiver(&self) -> Result<AlertManagerReceiver, String> {
         todo!()
     }
     async fn install(&self, sender: &Prometheus) -> Result<Outcome, InterpretError> {
@@ -193,7 +193,7 @@ impl PrometheusReceiver for WebhookReceiver {
 
 #[async_trait]
 impl AlertReceiver<KubePrometheus> for WebhookReceiver {
-    fn as_alertmanager_receiver(&self) -> AlertManagerReceiver {
+    fn as_alertmanager_receiver(&self) -> Result<AlertManagerReceiver, String> {
         todo!()
     }
     async fn install(&self, sender: &KubePrometheus) -> Result<Outcome, InterpretError> {
diff --git a/harmony/src/modules/monitoring/okd/cluster_monitoring.rs b/harmony/src/modules/monitoring/okd/cluster_monitoring.rs
index 05da341..2dfc169 100644
--- a/harmony/src/modules/monitoring/okd/cluster_monitoring.rs
+++ b/harmony/src/modules/monitoring/okd/cluster_monitoring.rs
@@ -81,43 +81,76 @@ impl<T: Topology + K8sclient> Interpret<T> for OpenshiftClusterAlertInterpret {
         trace!("Got secret {secret:?}");
 
         let data: serde_json::Value = secret.data;
+        trace!("Alertmanager-main secret data {data:#?}");
 
-        // TODO : get config in base64 by drilling into the value
-        let config_b64 = match data.get("alertmanager.yaml") {
-            Some(value) => value.as_str().unwrap_or(""),
-            None => "",
+        // TODO fix this unwrap, handle the option gracefully
+        let config_b64 = match data.get("data") {
+            Some(data_value) => match data_value.get("alertmanager.yaml") {
+                Some(value) => value.as_str().unwrap_or(""),
+                None => {
+                    return Err(InterpretError::new(
+                        "Missing 'alertmanager.yaml' in alertmanager-main secret".to_string(),
+                    ));
+                }
+            },
+            None => {
+                return Err(InterpretError::new(
+                    "Missing 'data' field in alertmanager-main secret.".to_string(),
+                ));
+            }
         };
+        trace!("Config base64 {config_b64}");
 
-        // TODO : base64 decode it
         let config_bytes = BASE64_STANDARD.decode(config_b64).unwrap_or_default();
 
-        // TODO : use serde_yaml to deserialize the string
-        let am_config: serde_yaml::Value =
+        let mut am_config: serde_yaml::Value =
             serde_yaml::from_str(&String::from_utf8(config_bytes).unwrap_or_default())
                 .unwrap_or_default();
 
-        // Merge current alert receivers from this config with self.receivers
-        if let Some(existing_receivers) = am_config.get("receivers") {
-            for receiver in existing_receivers.as_sequence().unwrap_or(&vec![]) {
-                match serde_json::to_string(receiver) {
-                    Ok(yaml_str) => {
-                        // TODO: validate that each receiver implements to_alertmanager_yaml()
-                        // and compare with our receivers
-                        info!("Found existing receiver config: {}", yaml_str);
-                    }
-                    Err(e) => debug!("Failed to serialize receiver: {}", e),
+        debug!("Current alertmanager config {am_config:#?}");
+
+        let existing_receivers = if let Some(receivers) = am_config.get_mut("receivers") {
+            match receivers.as_mapping_mut() {
+                Some(recv) => recv,
+                None => {
+                    return Err(InterpretError::new(format!(
+                        "Expected alertmanager config receivers to be a mapping, got {receivers:?}"
+                    )));
                 }
             }
-        }
+        } else {
+            &mut serde_yaml::mapping::Mapping::default()
+        };
+
+        trace!("Existing receivers : {existing_receivers:#?}");
 
         for custom_receiver in &self.receivers {
-            trace!("Processing custom receiver");
+            let name = &custom_receiver.name();
+            if let Some(recv) = existing_receivers.get(name) {
+                info!(
+                    "AlertManager receiver {name} already exists and will be overwritten : {recv:#?}"
+                );
+            }
             debug!(
                 "Custom receiver YAML output: {:?}",
                 custom_receiver.as_alertmanager_receiver()
             );
+
+            let json_value = custom_receiver.as_alertmanager_receiver()?.receiver_config;
+            let yaml_string = serde_json::to_string(&json_value).map_err(|e| {
+                InterpretError::new(format!("Failed to serialize receiver config: {}", e))
+            })?;
+
+            let yaml_value: serde_yaml::Value =
+                serde_yaml::from_str(&yaml_string).map_err(|e| {
+                    InterpretError::new(format!("Failed to parse receiver config as YAML: {}", e))
+                })?;
+
+            existing_receivers.insert(serde_yaml::Value::from(name.as_str()), yaml_value);
         }
 
+        debug!("Current alertmanager config {am_config:#?}");
+
         Ok(Outcome::success(todo!("whats up")))
     }