diff --git a/src/composables/useNotifications.js b/src/composables/useNotifications.js
index 40028eb..da6233d 100644
--- a/src/composables/useNotifications.js
+++ b/src/composables/useNotifications.js
@@ -56,7 +56,8 @@ export function useNotifications() {
             group: 'system-alerts',
             data: {
                 deeplink: payload.deeplink,
-                actionLabel: payload.actionLabel || defaultActionLabel(payload.deeplink)
+                actionLabel: payload.actionLabel || defaultActionLabel(payload.deeplink),
+                thread_key: payload.thread_key || null
             }
         });
     }
diff --git a/src/layout/AppLayout.vue b/src/layout/AppLayout.vue
index 8f20cb4..bac9bc8 100644
--- a/src/layout/AppLayout.vue
+++ b/src/layout/AppLayout.vue
@@ -19,6 +19,9 @@ import { useLayout } from '@/layout/composables/layout';
 import { computed, onMounted, onBeforeUnmount, provide, watch } from 'vue';
 import { useRoute, useRouter } from 'vue-router';
 
+import { supabase } from '@/lib/supabase/client';
+import { useConversationDrawerStore } from '@/stores/conversationDrawerStore';
+
 const router = useRouter();
 
 // Aliases "semânticos" → resolvidos pra rota real com base no role atual.
@@ -47,6 +50,32 @@ function goToDeeplink(link) {
     }
 }
 
+// Abre o drawer global de conversa a partir do thread_key (do payload do alerta).
+// Busca o row da view conversation_threads e delega pro store.
+async function openConversationDrawer(threadKey) {
+    if (!threadKey) return;
+    try {
+        const tenantId = tenantStore.activeTenantId;
+        const { data, error } = await supabase
+            .from('conversation_threads')
+            .select('*')
+            .eq('tenant_id', tenantId)
+            .eq('thread_key', threadKey)
+            .maybeSingle();
+        if (error) throw error;
+        if (!data) {
+            // Thread sumiu (foi arquivada ou paciente deletado) — fallback pra lista
+            goToDeeplink('/conversas');
+            return;
+        }
+        const drawerStore = useConversationDrawerStore();
+        await drawerStore.openForThread(data);
+    } catch (e) {
+        console.warn('[AppLayout] openConversationDrawer falhou:', e?.message);
+        goToDeeplink('/conversas');
+    }
+}
+
 import AppFooter from './AppFooter.vue';
 import AppSidebar from './AppSidebar.vue';
 import AppTopbar from './AppTopbar.vue';
@@ -216,16 +245,28 @@ onBeforeUnmount(() => {
                         <div class="text-xs mt-0.5 leading-relaxed opacity-85">{{ slotProps.message.detail }}</div>
                     </div>
                 </div>
-                <Button
-                    v-if="slotProps.message.data?.deeplink"
-                    :label="slotProps.message.data?.actionLabel || 'Abrir'"
-                    icon="pi pi-arrow-right"
-                    iconPos="right"
-                    size="small"
-                    severity="danger"
-                    class="rounded-full self-end"
-                    @click="goToDeeplink(slotProps.message.data.deeplink)"
-                />
+                <div class="flex gap-2 self-end flex-wrap">
+                    <Button
+                        v-if="slotProps.message.data?.thread_key"
+                        label="Abrir conversa"
+                        icon="pi pi-comment"
+                        size="small"
+                        severity="danger"
+                        outlined
+                        class="rounded-full"
+                        @click="openConversationDrawer(slotProps.message.data.thread_key)"
+                    />
+                    <Button
+                        v-if="slotProps.message.data?.deeplink"
+                        :label="slotProps.message.data?.actionLabel || 'Abrir'"
+                        icon="pi pi-arrow-right"
+                        iconPos="right"
+                        size="small"
+                        severity="danger"
+                        class="rounded-full"
+                        @click="goToDeeplink(slotProps.message.data.deeplink)"
+                    />
+                </div>
             </div>
         </template>
     </Toast>