diff --git a/Dockerfile b/Dockerfile
index 91d72c2..9a63433 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,11 +15,11 @@ RUN pip install \
       -r requirements.txt
 RUN pip install errbot[slack]
 
-COPY data ./data
 COPY config.py .
 COPY errbot-slack-bolt-backend ./errbot-slack-bolt-backend
 COPY errbot-backend-botframework ./errbot-backend-botframework
 
+RUN mkdir ./data
 RUN mkdir -p plugins/sdm
 COPY plugins/sdm ./plugins/sdm/
 
diff --git a/config.py b/config.py
index d64eb3b..f67aa2e 100644
--- a/config.py
+++ b/config.py
@@ -16,24 +16,35 @@ def get_access_controls():
     }
 
 def get_bot_identity():
-    if os.getenv('SDM_BOT_PLATFORM') == 'ms-teams':
+    platform = os.getenv('SDM_BOT_PLATFORM')
+    if platform == 'ms-teams':
         return {
             "appId": os.getenv("AZURE_APP_ID"),
             "appPassword": os.getenv("AZURE_APP_PASSWORD")
         }
+    elif platform == 'slack-classic':
+        return {
+            'token': os.getenv("SLACK_TOKEN")
+        }
     return {
-        "app_token": os.environ["SLACK_APP_TOKEN"],
-        "bot_token": os.environ["SLACK_BOT_TOKEN"],
+        "app_token": os.getenv("SLACK_APP_TOKEN"),
+        "bot_token": os.getenv("SLACK_BOT_TOKEN"),
     }
 
 def get_backend():
-    if os.getenv('SDM_BOT_PLATFORM') == 'ms-teams':
+    platform = os.getenv('SDM_BOT_PLATFORM')
+    if platform == 'ms-teams':
         return 'BotFramework'
+    elif platform == 'slack-classic':
+        return 'Slack'
     return 'SlackBolt'
 
 def get_bot_extra_backend_dir():
-    if os.getenv('SDM_BOT_PLATFORM') == 'ms-teams':
+    platform = os.getenv('SDM_BOT_PLATFORM')
+    if platform == 'ms-teams':
         return 'errbot-backend-botframework'
+    elif platform == 'slack-classic':
+        return None
     return 'errbot-slack-bolt-backend/errbot_slack_bolt_backend'
 
 
diff --git a/docker-compose.yaml b/docker-compose.yaml
index dd5306e..49fb85b 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -2,15 +2,9 @@ version: "3.9"
 services:
   accessbot:
     image: public.ecr.aws/strongdm/accessbot:latest
-    environment:
-      # IMPORTANT: Do not enclose values in double or single quotes 
+    env_file:
+      # You could use env-file.example as a reference
+      - env-file
+    ports:
+      - 3141:3141
 
-      # Required variables
-      - SLACK_APP_TOKEN=slack-app-token
-      - SLACK_BOT_TOKEN=slack-bot-token
-      - SDM_ADMINS=@slack-handle1 @slack-handle2 # use space for configuring multiple slack handles 
-      - SDM_API_ACCESS_KEY=sdm-api-acess-key
-      - SDM_API_SECRET_KEY=sdm-api-secret-key
-
-      # Optional variables
-      # See: docs/CONFIGURE_ACCESSBOT.md
diff --git a/docs/CONFIGURE_ACCESSBOT.md b/docs/CONFIGURE_ACCESSBOT.md
index 01d0664..831b025 100644
--- a/docs/CONFIGURE_ACCESSBOT.md
+++ b/docs/CONFIGURE_ACCESSBOT.md
@@ -3,12 +3,21 @@
 There are a number of variables you can use for configuring AccessBot.
 
 ## Required configuration
-* **SLACK_APP_TOKEN**. Slack App-Level Token 
-* **SLACK_BOT_TOKEN**. Slack Bot User OAuth Token
-* **SDM_ADMINS**. List of Slack admins, format: `@usernick`. Although it's not required, these users are often SDM admins too. You could use `whoami` for getting user nicks. 
+* **SDM_ADMINS**. List of Slack admins, format: `@usernick`. Although it's not required, these users are often SDM admins too. For getting user nicks, you could use the command `whoami` or the [tools/get-slack-handle.py](../tools/get-slack-handle.py) script.
 * **SDM_API_ACCESS_KEY**. SDM API Access Key
 * **SDM_API_SECRET_KEY**. SDM API Access Key Secret
 
+### Slack (SDM_BOT_PLATFORM='slack' / default)
+* **SLACK_APP_TOKEN**. Slack App-Level Token 
+* **SLACK_BOT_TOKEN**. Slack Bot User OAuth Token
+
+### Slack Classic (SDM_BOT_PLATFORM='slack-classic')
+* **SLACK_TOKEN**. Slack Bot User OAuth Token for Classic Slack bot version
+
+### MS Teams (SDM_BOT_PLATFORM='ms-teams')
+* **AZURE_APP_ID**. Set to the **Microsoft App ID**
+* **AZURE_APP_PASSWORD**. Set to the **Secret Value** 
+
 ## Internal configuration
 * **LOG_LEVEL**. Logging level. Default = INFO
 * **SDM_DOCKERIZED**. Logging type. Default = true (_when using docker_), meaning logs go to STDOUT
@@ -48,6 +57,7 @@ See image below for more information:
 `System Preferences > Keyboard > Text > Uncheck "Use smart quotes and dashes`. The `config` command fails to understand quotes as unicode characters.
 
 ### Using Tags
+A snippet that might help:
 
 #### Allow Resource
 ```
diff --git a/docs/CONFIGURE_ALTERNATIVE_EMAILS.md b/docs/CONFIGURE_ALTERNATIVE_EMAILS.md
index 64b3dc0..981d20d 100644
--- a/docs/CONFIGURE_ALTERNATIVE_EMAILS.md
+++ b/docs/CONFIGURE_ALTERNATIVE_EMAILS.md
@@ -2,7 +2,7 @@
 
 You can make access requests using alternative emails. This functionality is specially helpful when you need to make access requests using a different email address than the one you have configured in your Slack Profile. 
 
-**_Custom profile fields are only available for Slack Business+ workspaces_**
+**_Custom profile fields are only available for Slack Business+ workspaces and Bolt API_**
 
 Follow these steps to configure in your Slack Workspace:
 
diff --git a/docs/CONFIGURE_LOCAL_ENV.md b/docs/CONFIGURE_LOCAL_ENV.md
index 4558915..fe775da 100644
--- a/docs/CONFIGURE_LOCAL_ENV.md
+++ b/docs/CONFIGURE_LOCAL_ENV.md
@@ -11,19 +11,45 @@ pip install -r requirements/dev.txt
 
 ## Variables configuration
 ```
-export SLACK_APP_TOKEN=slack-app-token
-export SLACK_BOT_TOKEN=slack-bot-token
 export SDM_API_ACCESS_KEY=api-access-key
 export SDM_API_SECRET_KEY=api-secret-key
 export SDM_ADMINS=@admin1 # if multiple, use: @admin1 @admin2
 ```
 
-See [Configure Slack](CONFIGURE_SLACK.md) and [Configure SDM](CONFIGURE_SDM.md)
+### BOT PLATFORM variables configuration
+
+See the subsessions about SDM_BOT_PLATFORM specific variables:
+
+#### SDM_BOT_PLATFORM is `slack`
+```
+export SLACK_APP_TOKEN=slack-app-token
+export SLACK_BOT_TOKEN=slack-bot-token
+```
+
+See [Configure Slack](CONFIGURE_SLACK.md)
+
+#### SDM_BOT_PLATFORM is `slack-classic`
+```
+export SLACK_TOKEN=slack-token
+```
+
+See [Configure Slack Classic Bot](CONFIGURE_SLACK_CLASSIC.md)
+
+#### SDM_BOT_PLATFORM is `ms-teams`:
+```
+export AZURE_APP_ID=app-id
+export AZURE_APP_PASSWORD=app-password
+```
+
+See [Configure Microsoft Teams](CONFIGURE_MS_TEAMS.md)
+
+---
+
+Before initialize errbot, you also need to [Configure SDM](CONFIGURE_SDM.md).
 
 ## Initialize errbot
 ```
 mv config.py config.py.back
-errbot --init
 pip install errbot[slack]
 mv config.py.back config.py
 ```
diff --git a/docs/CONFIGURE_SLACK_CLASSIC.md b/docs/CONFIGURE_SLACK_CLASSIC.md
new file mode 100644
index 0000000..18abecf
--- /dev/null
+++ b/docs/CONFIGURE_SLACK_CLASSIC.md
@@ -0,0 +1,31 @@
+# Configure Slack
+
+In order to configure AccessBot integration with Slack follow the next steps:
+
+1. Go to https://api.slack.com/apps?new_classic_app=1 and create a classic app
+
+![image](https://user-images.githubusercontent.com/313803/115708663-936d2380-a370-11eb-94d2-b5edb1596af7.png)
+
+2. Go to OAuth & Permissions and add bot scope in the Scopes 
+
+![image](https://user-images.githubusercontent.com/313803/115709326-653c1380-a371-11eb-9346-f2fa81c7fd24.png)
+
+IMPORTANT: The reason why you need a classic app and the bot scope, is because the current AccessBot implementation uses the RTM API, which is not available 
+when updating to the new bot scopes. 
+
+4. Go to App Home 
+
+![image](https://user-images.githubusercontent.com/313803/115710249-6cafec80-a372-11eb-9071-bad38cf0d4bf.png)
+
+5. Click Add Legacy Bot User and set its name
+
+![image](https://user-images.githubusercontent.com/313803/115710432-a2ed6c00-a372-11eb-8fda-b8ef9c874e49.png)
+
+6. Go to Install App 
+
+![image](https://user-images.githubusercontent.com/313803/115710557-c6181b80-a372-11eb-95dd-72927c81e53a.png)
+
+
+**Use "Bot User OAuth Token" for your _SLACK_TOKEN_ variable**
+
+_Original instructions from [this thread](https://github.com/slackapi/python-slack-sdk/issues/609#issuecomment-6398872129)_
diff --git a/env-file.example b/env-file.example
new file mode 100644
index 0000000..ac379ad
--- /dev/null
+++ b/env-file.example
@@ -0,0 +1,42 @@
+# You can copy this file as "env-file" for your docker-compose
+# IMPORTANT: Do not enclose values in double or single quotes 
+
+# ------------------------------------------------------------------------------
+# |                           GENERAL ENV VARS                                 |
+# ------------------------------------------------------------------------------
+# These vars are required for any SDM_BOT_PLAFORM.
+
+SDM_BOT_PLATFORM=slack # possible values: slack, slack-classic, ms-teams
+SDM_API_ACCESS_KEY=
+SDM_API_SECRET_KEY=
+
+# ------------------------------------------------------------------------------
+# |                          SLACK BOLT ENV VARS                               |
+# ------------------------------------------------------------------------------
+# You need to use the following vars when SDM_BOT_PLATFORM var is "slack":
+
+# SLACK_APP_TOKEN=
+# SLACK_BOT_TOKEN=
+# SDM_ADMINS=@nickname
+
+# ------------------------------------------------------------------------------
+# |                         SLACK CLASSIC ENV VARS                             |
+# ------------------------------------------------------------------------------
+# You need to use the following vars when SDM_BOT_PLATFORM var is "slack-classic":
+
+# SLACK_TOKEN=
+# SDM_ADMINS=@nickname
+
+# ------------------------------------------------------------------------------
+# |                            MS-TEAMS ENV VARS                               |
+# ------------------------------------------------------------------------------
+# You need to use the following vars when SDM_BOT_PLATFORM var is "ms-teams":
+
+# SDM_ADMINS=user@email.com
+# AZURE_APP_ID=
+# AZURE_APP_PASSWORD=
+
+# ------------------------------------------------------------------------------
+# |                              OPTIONAL VARS                                 |
+# ------------------------------------------------------------------------------
+# See: docs/CONFIGURE_ACCESSBOT.md
diff --git a/ms-teams/dev/start.sh b/ms-teams/dev/start.sh
index ab6a7c4..70e7aff 100755
--- a/ms-teams/dev/start.sh
+++ b/ms-teams/dev/start.sh
@@ -2,7 +2,7 @@
 
 errbot &
 pid[0]=$!
-ssh -N -R 3141:localhost:3141 -i $LOG_EXPORT_CONTAINER_SSH_CREDENTIALS $LOG_EXPORT_CONTAINER_SSH_DESTINATION &
+ssh -N -R 3141:localhost:3141 -i $ACCESSBOT_WEBHOOK_SSH_CREDENTIALS $ACCESSBOT_WEBHOOK_SSH_DESTINATION &
 pid[1]=$!
 trap "kill ${pid[0]} ${pid[1]}; exit 1" INT
 wait
diff --git a/plugins/sdm/accessbot.py b/plugins/sdm/accessbot.py
index a4cf1c4..cd03d16 100644
--- a/plugins/sdm/accessbot.py
+++ b/plugins/sdm/accessbot.py
@@ -238,8 +238,8 @@ def get_sdm_email_from_profile(self, sender, email_field):
     def clean_up_message(self, message):
         return self._platform.clean_up_message(message)
 
-    def format_access_request_params(self, resource_name, sender_nick, request_id):
-        return self._platform.format_access_request_params(resource_name, sender_nick, request_id)
+    def format_access_request_params(self, resource_name, sender_nick):
+        return self._platform.format_access_request_params(resource_name, sender_nick)
 
     def format_strikethrough(self, text):
         return self._platform.format_strikethrough(text)
diff --git a/plugins/sdm/lib/helper/base_grant_helper.py b/plugins/sdm/lib/helper/base_grant_helper.py
index 1393cd9..a7ae952 100644
--- a/plugins/sdm/lib/helper/base_grant_helper.py
+++ b/plugins/sdm/lib/helper/base_grant_helper.py
@@ -66,7 +66,6 @@ def __grant_access(self, message, sdm_object, sdm_account, execution_id, request
         self.__bot.log.info("##SDM## %s GrantHelper.__grant_%s sender_nick: %s sender_email: %s", execution_id, self.__grant_type, sender_nick, sender_email)
         self.__enter_grant_request(message, sdm_object, sdm_account, self.__grant_type, request_id)
         if not self.__needs_auto_approve(sdm_object) or self.__reached_max_auto_approve_uses(message.frm.person):
-            # TODO: ADD EXTRAS
             yield from self.__notify_access_request_entered(sender_nick, sdm_object.name, request_id, message)
             self.__bot.log.debug("##SDM## %s GrantHelper.__grant_%s needs manual approval", execution_id, self.__grant_type)
             return
@@ -90,9 +89,9 @@ def __reached_max_auto_approve_uses(self, requester_id):
     def __notify_access_request_entered(self, sender_nick, resource_name, request_id, message):
         team_admins = ", ".join(self.__bot.get_admins())
         operation_desc = self.get_operation_desc()
-        resource_name, sender_nick, request_id = self.__bot.format_access_request_params(resource_name, sender_nick, request_id)
-        yield f"Thanks {sender_nick}, that is a valid request. Let me check with the team admins: {team_admins}\nYour request id is {request_id}"
-        self.__notify_admins(f"Hey I have an {operation_desc} request from USER {sender_nick} for {self.__grant_type.name} {resource_name}! To approve, enter: **yes** {request_id}", message)
+        formatted_resource_name, formatted_sender_nick = self.__bot.format_access_request_params(resource_name, sender_nick)
+        yield f"Thanks {formatted_sender_nick}, that is a valid request. Let me check with the team admins: {team_admins}\nYour request id is **{request_id}**"
+        self.__notify_admins(f"Hey I have an {operation_desc} request from USER {formatted_sender_nick} for {self.__grant_type.name} {formatted_resource_name}! To approve, enter: **yes {request_id}**", message)
 
     def __notify_admins(self, text, message):
         admins_channel = self.__bot.config['ADMINS_CHANNEL']
diff --git a/plugins/sdm/lib/helper/poller_helper.py b/plugins/sdm/lib/helper/poller_helper.py
index 6946f53..6577a23 100644
--- a/plugins/sdm/lib/helper/poller_helper.py
+++ b/plugins/sdm/lib/helper/poller_helper.py
@@ -9,7 +9,7 @@ def stale_grant_requests_cleaner(self):
         for request_id in self.__bot.get_grant_request_ids():
             grant_request = self.__bot.get_grant_request(request_id)
             elapsed_time = time.time() - grant_request['timestamp']
-            if elapsed_time > self.__bot.config['ADMIN_TIMEOUT']:
+            if elapsed_time >= self.__bot.config['ADMIN_TIMEOUT']:
                 self.__bot.log.info("##SDM## Cleaning grant requests, stale request_id = %s", request_id)
                 self.__notify_grant_request_denied(grant_request)
                 self.__bot.remove_grant_request(request_id)
diff --git a/plugins/sdm/lib/platform/base_platform.py b/plugins/sdm/lib/platform/base_platform.py
index 68c091a..78c48b8 100644
--- a/plugins/sdm/lib/platform/base_platform.py
+++ b/plugins/sdm/lib/platform/base_platform.py
@@ -50,7 +50,7 @@ def clean_up_message(self, text):
         pass
 
     @abstractmethod
-    def format_access_request_params(self, resource_name, sender_nick, request_id):
+    def format_access_request_params(self, resource_name, sender_nick):
         pass
 
     @abstractmethod
diff --git a/plugins/sdm/lib/platform/ms_teams_platform.py b/plugins/sdm/lib/platform/ms_teams_platform.py
index e27137d..c897aa5 100644
--- a/plugins/sdm/lib/platform/ms_teams_platform.py
+++ b/plugins/sdm/lib/platform/ms_teams_platform.py
@@ -45,11 +45,8 @@ def get_user_nick(self, approver):
     def clean_up_message(self, text):
         return re.sub(r'<at>.+</at>', '', text).strip()
 
-    def format_access_request_params(self, resource_name, sender_nick, request_id):
-        resource_name = f'**{resource_name}**'
-        sender_nick = f'**{sender_nick}**'
-        request_id = f'**{request_id}**'
-        return resource_name, sender_nick, request_id
+    def format_access_request_params(self, resource_name, sender_nick):
+        return f'**{resource_name}**', f'**{sender_nick}**'
 
     def format_strikethrough(self, text):
         return r"~~" + text + r"~~"
diff --git a/plugins/sdm/lib/platform/slack_platform.py b/plugins/sdm/lib/platform/slack_platform.py
index e6a651e..1750d0d 100644
--- a/plugins/sdm/lib/platform/slack_platform.py
+++ b/plugins/sdm/lib/platform/slack_platform.py
@@ -40,11 +40,8 @@ def get_user_nick(self, approver):
     def clean_up_message(self, text):
         return text
 
-    def format_access_request_params(self, resource_name, sender_nick, request_id):
-        resource_name = r"\`" + resource_name + r"\`"
-        sender_nick = r"\`" + sender_nick + r"\`"
-        request_id = r"\`" + request_id + r"\`"
-        return resource_name, sender_nick, request_id
+    def format_access_request_params(self, resource_name, sender_nick):
+        return r"\`" + resource_name + r"\`", r"\`" + sender_nick + r"\`"
 
     def format_strikethrough(self, text):
         return r"~" + text + r"~"
diff --git a/requirements/common.txt b/requirements/common.txt
index 2d220ee..f157562 100644
--- a/requirements/common.txt
+++ b/requirements/common.txt
@@ -2,6 +2,7 @@
 strongdm
 datetime
 errbot
+slackclient
 slack-bolt
 shortuuid
 fuzzywuzzy