diff --git a/apps/emqx_auto_subscribe/etc/emqx_auto_subscribe.conf b/apps/emqx_auto_subscribe/etc/emqx_auto_subscribe.conf
index c91b77aa1..f6d041dab 100644
--- a/apps/emqx_auto_subscribe/etc/emqx_auto_subscribe.conf
+++ b/apps/emqx_auto_subscribe/etc/emqx_auto_subscribe.conf
@@ -4,10 +4,12 @@ auto_subscribe {
         # {
         #     topic = "/c/${clientid}",
         #     qos   = 0
-        # },
+        #     rh    = 0
+        #     rap   = 0
+        #     nl    = 0
+        # }
         # {
         #     topic = "/u/${username}",
-        #     qos   = 1
         # },
         # {
         #     topic = "/h/${host}",
@@ -15,15 +17,12 @@ auto_subscribe {
         # },
         # {
         #     topic = "/p/${port}",
-        #     qos   = 0
         # },
         # {
         #     topic = "/topic/abc",
-        #     qos   = 0
         # },
         # {
         #     topic = "/client/${clientid}/username/${username}/host/${host}/port/${port}",
-        #     qos   = 0
         # }
     ]
 }
diff --git a/apps/emqx_auto_subscribe/src/emqx_auto_subscribe_api.erl b/apps/emqx_auto_subscribe/src/emqx_auto_subscribe_api.erl
index 7eeef52ff..97c9674b9 100644
--- a/apps/emqx_auto_subscribe/src/emqx_auto_subscribe_api.erl
+++ b/apps/emqx_auto_subscribe/src/emqx_auto_subscribe_api.erl
@@ -31,7 +31,7 @@ api_spec() ->
 schema() ->
     emqx_mgmt_util:schema(
         emqx_mgmt_api_configs:gen_schema(
-            emqx:get_raw_config([auto_subscribe, topics]))).
+            emqx:get_raw_config([auto_subscribe, topics])), <<"">>).
 
 auto_subscribe_api() ->
     Metadata = #{
diff --git a/apps/emqx_auto_subscribe/src/emqx_auto_subscribe_placeholder.erl b/apps/emqx_auto_subscribe/src/emqx_auto_subscribe_placeholder.erl
index cbe881bde..70779770d 100644
--- a/apps/emqx_auto_subscribe/src/emqx_auto_subscribe_placeholder.erl
+++ b/apps/emqx_auto_subscribe/src/emqx_auto_subscribe_placeholder.erl
@@ -23,16 +23,17 @@
 generate(Topics) when is_list(Topics) ->
     [generate(Topic) || Topic <- Topics];
 
-generate(#{qos := Qos, topic := Topic}) when is_binary(Topic) ->
-    #{qos => Qos, placeholder => generate(Topic, [])}.
+generate(T0 = #{topic := Topic}) ->
+    T = maps:without([topic], T0),
+    T#{placeholder => generate(Topic, [])}.
 
 -spec(to_topic_table(list(), map(), map()) -> list()).
-to_topic_table(PlaceHolders, ClientInfo, ConnInfo) ->
+to_topic_table(PHs, ClientInfo, ConnInfo) ->
     [begin
         Topic0 = to_topic(PlaceHolder, ClientInfo, ConnInfo, []),
         {Topic, Opts} = emqx_topic:parse(Topic0),
-        {Topic, Opts#{qos => Qos}}
-     end || #{qos := Qos, placeholder := PlaceHolder} <- PlaceHolders].
+        {Topic, Opts#{qos => Qos, rh => RH, rap => RAP, nl => NL}}
+     end || #{qos := Qos, rh := RH, rap := RAP, nl := NL, placeholder := PlaceHolder} <- PHs].
 
 %%--------------------------------------------------------------------
 %% internal
diff --git a/apps/emqx_auto_subscribe/src/emqx_auto_subscribe_schema.erl b/apps/emqx_auto_subscribe/src/emqx_auto_subscribe_schema.erl
index 73ae262a1..92420e217 100644
--- a/apps/emqx_auto_subscribe/src/emqx_auto_subscribe_schema.erl
+++ b/apps/emqx_auto_subscribe/src/emqx_auto_subscribe_schema.erl
@@ -30,5 +30,14 @@ fields("auto_subscribe") ->
 
 fields("topic") ->
     [ {topic, emqx_schema:t(binary())}
-    , {qos, emqx_schema:t(integer(), undefined, 0)}
+    , {qos, t(hoconsc:union([0, 1, 2]), 0)}
+    , {rh,  t(hoconsc:union([0, 1, 2]), 0)}
+    , {rap, t(hoconsc:union([0, 1]), 0)}
+    , {nl,  t(hoconsc:union([0, 1]), 0)}
     ].
+
+%%--------------------------------------------------------------------
+%% Internal functions
+%%--------------------------------------------------------------------
+t(Type, Default) ->
+    hoconsc:t(Type, #{default => Default}).