diff --git a/ui/web/src/pages/channels/channel-schemas.ts b/ui/web/src/pages/channels/channel-schemas.ts
index 04537e2e..af410cc5 100644
--- a/ui/web/src/pages/channels/channel-schemas.ts
+++ b/ui/web/src/pages/channels/channel-schemas.ts
@@ -65,7 +65,7 @@ export const credentialsSchema: Record<string, FieldDef[]> = {
 export const configSchema: Record<string, FieldDef[]> = {
   telegram: [
     { key: "dm_policy", label: "DM Policy", type: "select", options: dmPolicyOptions, defaultValue: "pairing" },
-    { key: "group_policy", label: "Group Policy", type: "select", options: groupPolicyOptions, defaultValue: "open" },
+    { key: "group_policy", label: "Group Policy", type: "select", options: groupPolicyOptions, defaultValue: "pairing" },
     { key: "require_mention", label: "Require @mention in groups", type: "boolean", defaultValue: true },
     { key: "history_limit", label: "Group History Limit", type: "number", defaultValue: 50, help: "Max pending group messages for context (0 = disabled)" },
     { key: "dm_stream", label: "DM Streaming", type: "boolean", defaultValue: false, help: "Edit placeholder progressively as LLM generates" },
@@ -77,8 +77,8 @@ export const configSchema: Record<string, FieldDef[]> = {
     { key: "block_reply", label: "Block Reply", type: "select", options: blockReplyOptions, defaultValue: "inherit", help: "Deliver intermediate text during tool iterations" },
   ],
   discord: [
-    { key: "dm_policy", label: "DM Policy", type: "select", options: dmPolicyOptions, defaultValue: "open" },
-    { key: "group_policy", label: "Group Policy", type: "select", options: groupPolicyOptions, defaultValue: "open" },
+    { key: "dm_policy", label: "DM Policy", type: "select", options: dmPolicyOptions, defaultValue: "pairing" },
+    { key: "group_policy", label: "Group Policy", type: "select", options: groupPolicyOptions, defaultValue: "pairing" },
     { key: "require_mention", label: "Require @mention in groups", type: "boolean", defaultValue: true },
     { key: "history_limit", label: "Group History Limit", type: "number", defaultValue: 50, help: "Max pending group messages for context (0 = disabled)" },
     { key: "allow_from", label: "Allowed Users", type: "tags", help: "Discord user IDs" },
@@ -90,7 +90,7 @@ export const configSchema: Record<string, FieldDef[]> = {
     { key: "webhook_port", label: "Webhook Port", type: "number", defaultValue: 0, help: "0 = share main gateway port (recommended)" },
     { key: "webhook_path", label: "Webhook Path", type: "text", defaultValue: "/feishu/events", help: "Path on main server for Lark events" },
     { key: "dm_policy", label: "DM Policy", type: "select", options: dmPolicyOptions, defaultValue: "pairing" },
-    { key: "group_policy", label: "Group Policy", type: "select", options: groupPolicyOptions, defaultValue: "open" },
+    { key: "group_policy", label: "Group Policy", type: "select", options: groupPolicyOptions, defaultValue: "pairing" },
     { key: "require_mention", label: "Require @mention in groups", type: "boolean", defaultValue: true },
     { key: "topic_session_mode", label: "Topic Session Mode", type: "select", options: [{ value: "disabled", label: "Disabled" }, { value: "enabled", label: "Enabled" }], defaultValue: "disabled", help: "Use thread root_id for session isolation" },
     { key: "history_limit", label: "Group History Limit", type: "number", help: "Max pending group messages for context (0 = disabled)" },
@@ -117,8 +117,8 @@ export const configSchema: Record<string, FieldDef[]> = {
     { key: "block_reply", label: "Block Reply", type: "select", options: blockReplyOptions, defaultValue: "inherit", help: "Deliver intermediate text during tool iterations" },
   ],
   whatsapp: [
-    { key: "dm_policy", label: "DM Policy", type: "select", options: dmPolicyOptions, defaultValue: "open" },
-    { key: "group_policy", label: "Group Policy", type: "select", options: groupPolicyOptions, defaultValue: "open" },
+    { key: "dm_policy", label: "DM Policy", type: "select", options: dmPolicyOptions, defaultValue: "pairing" },
+    { key: "group_policy", label: "Group Policy", type: "select", options: groupPolicyOptions, defaultValue: "pairing" },
     { key: "allow_from", label: "Allowed Users", type: "tags", help: "WhatsApp user IDs" },
     { key: "block_reply", label: "Block Reply", type: "select", options: blockReplyOptions, defaultValue: "inherit", help: "Deliver intermediate text during tool iterations" },
   ],