diff --git a/AmazonConnectSalesforceIntegration.png b/AmazonConnectSalesforceIntegration.png
index 9632384..da985e8 100644
Binary files a/AmazonConnectSalesforceIntegration.png and b/AmazonConnectSalesforceIntegration.png differ
diff --git a/README.md b/README.md
index 222325d..faf0aec 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,10 @@ For more information, please see the [AppExchange listing](https://appexchange.s
 ![Screenshot](AmazonConnectSalesforceIntegration.png)
 
 
+## CTI Adapter Versions Compatibility
+
+[Link to Compatibility Chart](https://amazon-connect.github.io/amazon-connect-salesforce-cti/docs/lightning/installation/04-salesforce-lambdas-manual-setup#compatibility-table)
+
 ## Deploying from Github
 To deploy from the Github package, you need to use the [AWS SAM CLI](https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-sam-cli-install.html). 
 First we will need to zip up the lambda code, you can do this by running `zip -r -j sam-app/lambda_functions/sam-app-deployment-artifact.zip sam-app/lambda_functions` from the root folder of this repository. 
@@ -39,4 +43,3 @@ See [CONTRIBUTING](CONTRIBUTING.md#security-issue-notifications) for more inform
 ## License
 
 This project is licensed under the Apache-2.0 License.
-
diff --git a/sam-app/lambda_functions/salesforce.py b/sam-app/lambda_functions/salesforce.py
index 631bc1b..93f3ad3 100755
--- a/sam-app/lambda_functions/salesforce.py
+++ b/sam-app/lambda_functions/salesforce.py
@@ -257,4 +257,4 @@ def __check_resp__(resp):
   raise Exception(msg)
 
 class InvalidAuthTokenException(Exception):
-  pass
\ No newline at end of file
+  pass
diff --git a/sam-app/lambda_functions/sfComprehendUtil.py b/sam-app/lambda_functions/sfComprehendUtil.py
index ee09651..d509cfe 100644
--- a/sam-app/lambda_functions/sfComprehendUtil.py
+++ b/sam-app/lambda_functions/sfComprehendUtil.py
@@ -181,6 +181,9 @@ def processTranscript(iItems):
         for alternative in iTranscript['alternatives']:
             if(float(alternative['confidence']) > maxAlternativeConfidenceScore):
                 selectedAlternative = alternative['content']
+                maxAlternativeConfidenceScore = alternative['confidence']
+        if(len(selectedAlternative) == 0):  # if the selected alternative to be added is empty then it must not be added. this will prevent lastItem to ever be empty 
+            continue
         transcript['content'] = selectedAlternative
         if(len(transcripts)>0):
             lastItem = transcripts[len(transcripts)-1]
diff --git a/sam-app/lambda_functions/sfExecuteTranscriptionStateMachine.py b/sam-app/lambda_functions/sfExecuteTranscriptionStateMachine.py
index 7d799e9..8598a8a 100644
--- a/sam-app/lambda_functions/sfExecuteTranscriptionStateMachine.py
+++ b/sam-app/lambda_functions/sfExecuteTranscriptionStateMachine.py
@@ -165,6 +165,9 @@ def createACContactChannelAnalyticsSalesforceObject(contactId, customerEndpoint,
     sfRequest['Details']['Parameters'][pnamespace + 'ContactId__c'] = contactId
     sfRequest['Details']['Parameters'][pnamespace + 'RecordingPath__c'] = recordingPath
     sfRequest['Details']['Parameters'][pnamespace + 'CustomerEndpointAddress__c'] = customerEndpoint['Address']
+    sfRequest['Details']['Parameters'][pnamespace + 'InstanceId__c'] = os.environ['AMAZON_CONNECT_INSTANCE_ID']
+    sfRequest['Details']['Parameters'][pnamespace + 'Region__c'] = os.environ['AMAZON_CONNECT_INSTANCE_REGION']
+
 
     ACContactChannelAnalyticsId = invokeSfAPI(sfRequest)['Id']
     logger.info('SF Object Created, with ID: %s' % ACContactChannelAnalyticsId)
diff --git a/sam-app/lambda_functions/sfIntervalAgent.py b/sam-app/lambda_functions/sfIntervalAgent.py
index 9931db6..2845d27 100644
--- a/sam-app/lambda_functions/sfIntervalAgent.py
+++ b/sam-app/lambda_functions/sfIntervalAgent.py
@@ -23,7 +23,7 @@
 limitations under the License.
 """
 
-import json, csv, os
+import json, csv, os, re
 import boto3
 import urllib.parse
 from salesforce import Salesforce
@@ -58,14 +58,9 @@ def lambda_handler(event, context):
 
   for record in csv.DictReader(data.split("\n")):
     logger.info("sfIntervalAgent record: %s" % record)
-    #sf.create(pnamespace + "AC_AgentPerformance__c", prepare_agent_record(record, event_record['eventTime']))
     agent_record = prepare_agent_record(record, event_record['eventTime'])
-    #logger.info("AC_Object_Name__c: %s" % agent_record[pnamespace + 'AC_Object_Name__c'])
-    #logger.info("StartInterval__c: %s" % agent_record[pnamespace + 'StartInterval__c'])
     ac_record_id = "%s%s" % (agent_record[pnamespace + 'AC_Object_Name__c'], agent_record[pnamespace + 'StartInterval__c'])
-    #logger.info("sfIntervalAgent ac_record_id: %s" % ac_record_id)
-    #logger.info("sfIntervalAgent record: %s" % agent_record)
-    #logger.info("sfIntervalAgent record: %s" % agent_record)
+
     sf.update_by_external(pnamespace + "AC_AgentPerformance__c", pnamespace + 'AC_Record_Id__c',ac_record_id, agent_record)
 
   logger.info("done")
@@ -84,8 +79,10 @@ def label_parser(key):
 
   if key.lower() == "agent":
     return pnamespace + "AC_Object_Name__c"
+  
+  key = re.sub(r'[-\s]+', '_', key)
 
-  return pnamespace + "%s__c" % key.replace(" ", "_")
+  return pnamespace + "%s__c" % key
 
 def value_parser(value):
   return value.replace("%", "") if len(value) > 0 else None
diff --git a/sam-app/lambda_functions/sfIntervalQueue.py b/sam-app/lambda_functions/sfIntervalQueue.py
index beda6fa..2b3f129 100644
--- a/sam-app/lambda_functions/sfIntervalQueue.py
+++ b/sam-app/lambda_functions/sfIntervalQueue.py
@@ -23,7 +23,7 @@
 limitations under the License.
 """
 
-import json, csv, urllib.parse, logging, os
+import json, csv, urllib.parse, logging, os, re
 import boto3
 
 from salesforce import Salesforce
@@ -53,7 +53,8 @@ def lambda_handler(event, context):
 
   for record in csv.DictReader(data.split("\n")):
     queue_record = prepare_queue_record(record, event_record['eventTime'])
-    ac_record_id = "%s%s" % (queue_record[pnamespace + 'AC_Object_Name__c'], queue_record[pnamespace + 'StartInterval__c'])
+    queue_name = re.sub(r'[-\s\W]+', '', queue_record[pnamespace + 'AC_Object_Name__c'])
+    ac_record_id = "%s%s" % (queue_name, queue_record[pnamespace + 'StartInterval__c'])
     #logger.info("sfIntervalAgent ac_record_id: %s" % ac_record_id)
     #logger.info("sfIntervalAgent record: %s" % queue_record)
     # logger.info("sfIntervalAgent record: %s" % agent_record)
@@ -75,8 +76,10 @@ def label_parser(key):
 
   if key.lower() == "queue":
     return pnamespace + "AC_Object_Name__c"
+  
+  key = re.sub(r'[-\s]+', '_', key)
 
-  return pnamespace + "%s__c" % key.replace(" ", "_")
+  return pnamespace + "%s__c" % key
 
 def value_parser(value):
-  return value.replace("%", "") if len(value) > 0 else None
\ No newline at end of file
+  return value.replace("%", "") if len(value) > 0 else None
diff --git a/sam-app/lambda_functions/template.yaml b/sam-app/lambda_functions/template.yaml
index a31c56f..664da55 100644
--- a/sam-app/lambda_functions/template.yaml
+++ b/sam-app/lambda_functions/template.yaml
@@ -1337,6 +1337,10 @@ Resources:
             Fn::GetAtt: sfInvokeAPI.Arn
           SF_ADAPTER_NAMESPACE:
             Ref: SalesforceAdapterNamespace
+          AMAZON_CONNECT_INSTANCE_ID:
+            Ref: AmazonConnectInstanceId
+          AMAZON_CONNECT_INSTANCE_REGION:
+            Ref: AWS::Region
           LOGGING_LEVEL:
             Ref: LambdaLoggingLevel
 
@@ -1616,5 +1620,3 @@ Resources:
               - Effect: Allow
                 Action: states:StartExecution
                 Resource: !Ref sfRealTimeQueueMetricsLoopJobStateMachine
-
-