diff --git a/drivers/place/calendar_common.cr b/drivers/place/calendar_common.cr
index a30f10c8490..3f27af4c486 100644
--- a/drivers/place/calendar_common.cr
+++ b/drivers/place/calendar_common.cr
@@ -80,7 +80,7 @@ module Place::CalendarCommon
     end
   end
 
-  protected def client
+  protected def client(&)
     # office365 execute queries against the users mailbox and hence doesn't require rate limiting
     if @client.not_nil!.client_id == :office365
       return yield(@client.not_nil!)
@@ -131,7 +131,7 @@ module Place::CalendarCommon
     cc : String | Array(String) = [] of String,
     bcc : String | Array(String) = [] of String,
     from : String | Array(String) | Nil = nil,
-    reply_to : String | Array(String) | Nil = nil
+    reply_to : String | Array(String) | Nil = nil,
   )
     sender = case from
              in String
@@ -176,7 +176,7 @@ module Place::CalendarCommon
   @[PlaceOS::Driver::Security(Level::Support)]
   def get_members(
     group_id : String,
-    next_page : String? = nil
+    next_page : String? = nil,
   )
     logger.debug { "listing members of group: #{group_id}" }
 
@@ -204,7 +204,7 @@ module Place::CalendarCommon
     query : String? = nil,
     limit : Int32? = nil,
     filter : String? = nil,
-    next_page : String? = nil
+    next_page : String? = nil,
   )
     logger.debug { "listing user details, query #{query || filter}, limit #{limit} (next: #{!!next_page})" }
     users = client &.list_users(query, limit, filter: filter, next_link: next_page)
@@ -243,7 +243,7 @@ module Place::CalendarCommon
   @[PlaceOS::Driver::Security(Level::Support)]
   def list_groups(
     query : String? = nil,
-    filter : String? = nil
+    filter : String? = nil,
   )
     logger.debug { "listing groups, filtering by #{filter || query}, note: graphAPI only" }
     client do |_client|
@@ -269,6 +269,40 @@ module Place::CalendarCommon
     end
   end
 
+  # NOTE:: GraphAPI Only!
+  @[PlaceOS::Driver::Security(Level::Support)]
+  def list_channel_messages(team_id : String, channel_id : String, filter : String? = nil, match : String? = nil,
+                            top : Int32? = nil, skip : Int32? = nil, count : Bool? = nil)
+    logger.debug { "listing teams #{team_id} channel #{channel_id} messages , filtering by #{filter}, selecting #{match}, top #{top}, skip #{skip}, count #{count}, note: graphAPI only" }
+    client do |_client|
+      if _client.client_id == :office365
+        _client.calendar.as(PlaceCalendar::Office365).client.list_channel_messages(team_id, channel_id, filter, match, top, skip, count)
+      end
+    end
+  end
+
+  # NOTE:: GraphAPI Only!
+  @[PlaceOS::Driver::Security(Level::Support)]
+  def get_channel_message(team_id : String, channel_id : String, message_id : String)
+    logger.debug { "Getting teams #{team_id} channel #{channel_id} message id #{message_id}, note: graphAPI only" }
+    client do |_client|
+      if _client.client_id == :office365
+        _client.calendar.as(PlaceCalendar::Office365).client.get_channel_message(team_id, channel_id, message_id)
+      end
+    end
+  end
+
+  # NOTE:: GraphAPI Only!
+  @[PlaceOS::Driver::Security(Level::Support)]
+  def send_channel_message(team_id : String, channel_id : String, message : String, content_type : String = "HTML")
+    logger.debug { "Sending teams #{team_id} channel #{channel_id} content_type #{content_type}, message #{message}, note: graphAPI only" }
+    client do |_client|
+      if _client.client_id == :office365
+        _client.calendar.as(PlaceCalendar::Office365).client.send_channel_message(team_id, channel_id, message, content_type)
+      end
+    end
+  end
+
   @[PlaceOS::Driver::Security(Level::Support)]
   def list_events(calendar_id : String, period_start : Int64, period_end : Int64, time_zone : String? = nil, user_id : String? = nil, include_cancelled : Bool = false, ical_uid : String? = nil)
     location = time_zone ? Time::Location.load(time_zone) : Time::Location.local
@@ -351,7 +385,7 @@ module Place::CalendarCommon
     online_meeting_url : String? = nil,
     online_meeting_sip : String? = nil,
     online_meeting_phones : Array(String)? = nil,
-    online_meeting_pin : String? = nil
+    online_meeting_pin : String? = nil,
   )
     user_id = (user_id || @service_account.presence || calendar_id).not_nil!
     calendar_id = calendar_id || user_id
diff --git a/shard.lock b/shard.lock
index a990ba092f9..102d4bcd5ad 100644
--- a/shard.lock
+++ b/shard.lock
@@ -179,7 +179,7 @@ shards:
 
   office365:
     git: https://github.com/placeos/office365.git
-    version: 1.25.4
+    version: 1.25.5
 
   openssl_ext:
     git: https://github.com/spider-gazelle/openssl_ext.git