diff --git a/spam.txt b/spam.txt
index e69de29..2bff9ec 100644
--- a/spam.txt
+++ b/spam.txt
@@ -0,0 +1,4 @@
+1157772674920099931
+1157772674920099931
+1145749111157555312
+1157772674920099931
diff --git a/src/bot.py b/src/bot.py
index d20c324..5654b13 100644
--- a/src/bot.py
+++ b/src/bot.py
@@ -225,6 +225,18 @@ async def on_guild_join(guild):
 ###########################
 @bot.event
 async def on_member_join(member):
+    ''' run on guild join '''
+    # channel = get(member.guild.text_channels, name='general')
+    welcome_message = f"Hello {member}! Welcome to {member.guild.name} important links:.\n"
+    # Retrieve important links from the 'important-links' channel
+    important_links_channel = get(member.guild.text_channels, name='important-links')
+    if important_links_channel:
+        async for message in important_links_channel.history(limit=10):
+            link_match = re.search(r'^(.*?):\s*(https:\/\/[^\s]+)', message.content)
+            if link_match:
+                link_name, link_url = link_match.group(1), link_match.group(2)
+                welcome_message += f"**[{link_name}]({link_url})**\n"
+    await member.send(welcome_message)
     channel = get(member.guild.text_channels, name='general')
     insert_query = f"INSERT INTO rank (user_id) VALUES (?)"
     db.mutation_query(insert_query, (member.id,))
@@ -419,7 +431,6 @@ async def get_rank(ctx, member_id=None):
             await ctx.channel.send(file=file)
         except Exception as e:
             await ctx.channel.send(f"No {member_id} in the database")
-
 ###########################
 # Function: get_instructor
 # Description: Command used to give Instructor role out by instructors
@@ -438,7 +449,6 @@ async def get_instructor(ctx):
         await ctx.send(instructors + " is the Instructor!")
     else:
         await ctx.send(instructors + " are the Instructors!")
-
 ###########################
 # Function: set_instructor
 # Description: Command used to give Instructor role out by instructors
@@ -464,7 +474,6 @@ async def set_instructor(ctx, member:discord.Member):
             send_messages=True,read_message_history=False)
     else:
         await ctx.channel.send('Not a valid command for this channel')
-
 ###########################
 # Function: remove_instructor
 # Description: Command used to remove a user from Instructor role by instructors
@@ -489,7 +498,6 @@ async def remove_instructor(ctx, member:discord.Member):
             await channel.set_permissions(member, overwrite=None)
     else:
         await ctx.channel.send('Not a valid command for this channel')
-
 ###########################
 # Function: create_event
 # Description: command to create event and send to event_creation module
@@ -505,7 +513,6 @@ async def remove_instructor(ctx, member:discord.Member):
 async def create_event(ctx):
     ''' run event creation interface '''
     await event_creation.create_event(ctx, TESTING_MODE)
-
 ###########################
 # Function: create_event
 # Description: command to create event and send to event_creation module
@@ -520,7 +527,6 @@ async def create_event(ctx):
 async def set_spam_settings(ctx):
     ''' run spam setting prompts '''
     await spam.set(ctx)
-
 ###########################
 # Function: oh
 # Description: command related office hour and send to office_hours module
@@ -535,7 +541,6 @@ async def set_spam_settings(ctx):
 async def office_hour_command(ctx, command, *args):
     ''' run office hour commands with various args '''
     await office_hours.office_hour_command(ctx, command, *args)
-
 ###########################
 # Function: ask
 # Description: command to ask question and sends to qna module
@@ -604,7 +609,6 @@ async def submit_regrade_request(ctx,name:str,questions:str):
     else:
         await ctx.author.send('Please submit requests in regrade channel.')
         await ctx.message.delete()
-
 @submit_regrade_request.error
 async def submit_regrade_request_error(ctx, error):
     """
@@ -626,15 +630,11 @@ async def display_regrade_request(ctx):
         Outputs:
             - displays regrade requests present in the database
     """
-
     if ctx.channel.name == 'regrade-requests':
         await regrade.display_requests(ctx)
-
     else:
         await ctx.author.send('Please submit requests in regrade channel.')
         await ctx.message.delete()
-
-
 @bot.command(name='update-request', help='update regrade request')
 async def update_regrade_request(ctx,name:str,questions:str):
     """
diff --git a/src/office_hours.py b/src/office_hours.py
index 0859749..58c4056 100644
--- a/src/office_hours.py
+++ b/src/office_hours.py
@@ -242,6 +242,8 @@ async def check_office_hour_loop():
                     begin_time = datetime.strptime(str(begin_time).rsplit(' ', 1)[1],
                      '%H:%M:%S').time()
                     end_time = datetime.strptime(str(end_time).rsplit(' ', 1)[1], '%H:%M:%S').time()
+                    if office_hour.ta is None:
+                        office_hour.ta = 'bot'
                     ta_name_channelified = office_hour.ta.lower().replace(" ", "-")
                     if (begin_time <= curr_time <= end_time and ta_name_channelified
                      not in office_hour_queues):
diff --git a/test/test_expansion.py b/test/test_expansion.py
new file mode 100644
index 0000000..ee5f0bc
--- /dev/null
+++ b/test/test_expansion.py
@@ -0,0 +1,51 @@
+###########################
+# Tests attendance functionality
+###########################
+
+
+import unittest
+from unittest.mock import AsyncMock, MagicMock
+
+# Import the function or method that you want to test.
+#from bot import on_member_join
+
+class TestDiscordBot(unittest.IsolatedAsyncioTestCase):
+    async def test_on_member_join(self):
+        # Create a mock member and guild objects.
+        member = MagicMock()
+        guild = MagicMock()
+        guild.name = "TestServer"
+        member.guild = guild
+
+        # Create a mock text channel and set its name.
+        text_channel = MagicMock()
+        text_channel.name = "general"
+
+        # Create a mock important-links channel.
+        important_links_channel = MagicMock()
+        important_links_channel.name = "important-links"
+
+        # Create a mock message with important links.
+        message = MagicMock()
+        message.content = "Link1: https://example1.com\nLink2: https://example2.com"
+
+        # Set up the necessary methods and attributes for the mocks.
+        guild.text_channels = [text_channel, important_links_channel]
+        important_links_channel.history = AsyncMock(return_value=[message])
+        import re
+
+        # Mock the send method for the member.
+        member.send = AsyncMock()
+
+        # Call the on_member_join event handler.
+        await on_member_join(member)
+
+        # Define your expectations and assertions.
+        expected_message = "Hello TestMember! Welcome to TestServer :) These are the important links, please follow it: .\n"
+        expected_message += "**Link1](https://example1.com)\n**[Link2](https://example2.com)\n"
+
+        # Assert that the member.send method was called with the expected message.
+        member.send.assert_called_once_with(expected_message)
+
+if __name__ == '__main__':
+    unittest.main()
\ No newline at end of file