diff --git a/CHANGELOG.md b/CHANGELOG.md
index e05ca7498..df4c090c7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to SODA will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## v.12.4.2 - 2023-12-21
+
+## Bug fixes:
+
+- Fixed Pennsieve login bug for accounts with Emails containing periods.
+
 ## v.12.4.1 - 2023-12-19
 
 ## Feature Additions:
diff --git a/package-lock.json b/package-lock.json
index 45a4982f7..2006ddb36 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "soda-for-sparc",
-  "version": "12.4.1",
+  "version": "12.4.2",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "soda-for-sparc",
-      "version": "12.4.1",
+      "version": "12.4.2",
       "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index f857605a8..fc815de18 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "soda-for-sparc",
   "productName": "SODA for SPARC",
-  "version": "12.4.1",
+  "version": "12.4.2",
   "description": "Keep Calm and Curate ",
   "main": "main.js",
   "scripts": {
diff --git a/pyflask/authentication/authenticate.py b/pyflask/authentication/authenticate.py
index a154a2362..27bbd7676 100644
--- a/pyflask/authentication/authenticate.py
+++ b/pyflask/authentication/authenticate.py
@@ -2,6 +2,7 @@
 import requests
 from os.path import expanduser, join, exists
 from configparser import ConfigParser
+from configUtils import format_agent_profile_name
 from flask import abort
 from os import mkdir
 import time
@@ -139,7 +140,6 @@ def bf_delete_default_profile():
     if "global" not in config:
         return 
     
-    default_profile_name = config["global"]["default_profile"]
     config.remove_section("global")
 
     with open(configpath, "w") as configfile:
@@ -179,7 +179,7 @@ def create_unique_profile_name(token, email, account_name):
                 organization = org["organization"]["name"]
 
         # create an updated profile name that is unqiue to the user and their workspace 
-        return f"{account_name}-{email_sub}-{organization}"
+        return format_agent_profile_name(f"{account_name}-{email_sub}-{organization}")
     except Exception as e:
         raise e
 
@@ -197,16 +197,11 @@ def bf_add_account_username(keyname, key, secret):
     """
     global namespace_logger
 
-    temp_keyname = "SODA_temp_generated"
-    # first delete the pre-existing default_profile entry , but not the profile itself 
-
-    # lowercase the key name 
-    keyname = keyname.lower()
+    # format the keyname to lowercase and replace '.' with '_'
+    formatted_account_name = format_agent_profile_name(keyname)
     
     bf_delete_default_profile()
     try:
-        keyname = keyname.strip()
-
         bfpath = join(userpath, ".pennsieve")
         # Load existing or create new config file
         config = ConfigParser()
@@ -223,23 +218,18 @@ def bf_add_account_username(keyname, key, secret):
             config.set(agentkey, "upload_workers", "10")
             config.set(agentkey, "upload_chunk_size", "32")
 
-
-        # ensure that if the profile already exists it has an api_host entry 
-        # if config.has_section(keyname):
-        #     config.set(keyname, "api_host", PENNSIEVE_URL)
-
         # Add new account if it does not already exist
-        if not config.has_section(keyname):
-            config.add_section(keyname)
+        namespace_logger.info(f"Adding account {formatted_account_name} to config file")
+        if not config.has_section(formatted_account_name):
+            config.add_section(formatted_account_name)
 
-        config.set(keyname, "api_token", key)
-        config.set(keyname, "api_secret", secret)
-        # config.set(keyname, "api_host", PENNSIEVE_URL)
+        config.set(formatted_account_name, "api_token", key)
+        config.set(formatted_account_name, "api_secret", secret)
 
         # set profile name in global section
         if not config.has_section("global"):
             config.add_section("global")
-            config.set("global", "default_profile", keyname)
+            config.set("global", "default_profile", formatted_account_name)
 
         
         with open(configpath, "w") as configfile:
@@ -253,7 +243,7 @@ def bf_add_account_username(keyname, key, secret):
         token = get_access_token()
     except Exception as e:
         namespace_logger.error(e)
-        bf_delete_account(keyname)
+        bf_delete_account(formatted_account_name)
         abort(401, 
             "Please check that key name, key, and secret are entered properly"
         )
@@ -268,7 +258,7 @@ def bf_add_account_username(keyname, key, secret):
         with open(configpath, "w+") as configfile:
             config.write(configfile)
 
-        return {"message": f"Successfully added account {keyname}"}
+        return {"message": f"Successfully added account {formatted_account_name}"}
 
     except Exception as e:
         bf_delete_account(keyname)
diff --git a/pyflask/configUtils/__init__.py b/pyflask/configUtils/__init__.py
index d9fe0145a..041b5d942 100644
--- a/pyflask/configUtils/__init__.py
+++ b/pyflask/configUtils/__init__.py
@@ -1 +1 @@
-from .config import add_api_host_to_config, lowercase_account_names
\ No newline at end of file
+from .config import add_api_host_to_config, lowercase_account_names, format_agent_profile_name
\ No newline at end of file
diff --git a/pyflask/configUtils/config.py b/pyflask/configUtils/config.py
index f8c7ffa7f..fbdc3f572 100644
--- a/pyflask/configUtils/config.py
+++ b/pyflask/configUtils/config.py
@@ -3,6 +3,7 @@
 """
 from constants import PENNSIEVE_URL
 
+
 def add_api_host_to_config(configparser, target_section_name, configpath):
     """
     Args:
@@ -26,6 +27,18 @@ def add_api_host_to_config(configparser, target_section_name, configpath):
 
 
 
+def format_agent_profile_name(profile_name):
+    """
+    Args:
+        profile_name: the profile name to format
+    Returns:
+        The formatted profile name
+    Notes:
+        We replace the '.' with '_' because the config parser on the Node side does not like '.' in the profile name.
+    """
+    return profile_name.lower().replace('.', '_').strip()
+
+
 def lowercase_account_names(config, account_name, configpath):
     """
     Args:
@@ -34,19 +47,20 @@ def lowercase_account_names(config, account_name, configpath):
     Action:
         Converts the account name and global default_profile value to lowercase and updates the config file.
     """
+    formatted_account_name = format_agent_profile_name(account_name)
     # if the section exists lowercased do nothing 
-    if config.has_section(account_name.lower()):
+    if config.has_section(formatted_account_name):
         return
 
     # add the section back with the lowercase account name
-    config.add_section(account_name.lower()) 
-    config.set(account_name.lower(), "api_token", config.get(account_name, "api_token"))
-    config.set(account_name.lower(), "api_secret", config.get(account_name, "api_secret"))
+    config.add_section(formatted_account_name) 
+    config.set(formatted_account_name, "api_token", config.get(formatted_account_name, "api_token"))
+    config.set(formatted_account_name, "api_secret", config.get(formatted_account_name, "api_secret"))
 
     # set the global default_profile option to lowercase
-    config.set("global", "default_profile", account_name.lower())
+    config.set("global", "default_profile", formatted_account_name)
 
-    # remove the existing section
+    # remove the unformatted account name
     config.remove_section(account_name)
 
     # finalize the changes
diff --git a/pyflask/manageDatasets/manage_datasets.py b/pyflask/manageDatasets/manage_datasets.py
index 4ac92711d..be572b484 100644
--- a/pyflask/manageDatasets/manage_datasets.py
+++ b/pyflask/manageDatasets/manage_datasets.py
@@ -32,7 +32,7 @@
 from authentication import get_access_token, bf_delete_account
 from users import get_user_information, update_config_account_name
 from permissions import has_edit_permissions, pennsieve_get_current_user_permissions
-from configUtils import lowercase_account_names
+from configUtils import lowercase_account_names, format_agent_profile_name
 from constants import PENNSIEVE_URL
 from pysodaUtils import (
     check_forbidden_characters_ps,
@@ -125,11 +125,11 @@ def bf_add_account_api_key(keyname, key, secret):
         Adds account to the Pennsieve configuration file (local machine)
     """
     try:
-        keyname = keyname.strip()
-        if (not keyname) or (not key) or (not secret):
+        formatted_key_name = format_agent_profile_name(keyname)
+        if (not formatted_key_name) or (not key) or (not secret):
             abort(401, "Please enter valid keyname, key, and/or secret")
 
-        if (keyname.isspace()) or (key.isspace()) or (secret.isspace()):
+        if (formatted_key_name.isspace()) or (key.isspace()) or (secret.isspace()):
             abort(401, "Please enter valid keyname, key, and/or secret")
 
         ps_path = join(userpath, ".pennsieve")
@@ -137,7 +137,7 @@ def bf_add_account_api_key(keyname, key, secret):
         config = ConfigParser()
         if exists(configpath):
             config.read(configpath)
-            if config.has_section(keyname):
+            if config.has_section(formatted_key_name):
                 abort(400, "Key name already exists")
         else:
             if not exists(ps_path):
@@ -154,14 +154,14 @@ def bf_add_account_api_key(keyname, key, secret):
             config.set(agentkey, "upload_chunk_size", "32")
 
         # Add new account
-        config.add_section(keyname)
-        config.set(keyname, "api_token", key)
-        config.set(keyname, "api_secret", secret)
+        config.add_section(formatted_key_name)
+        config.set(formatted_key_name, "api_token", key)
+        config.set(formatted_key_name, "api_secret", secret)
 
 
         if not config.has_section("global"):
             config.add_section("global")
-        config.set("global", "default_profile", keyname)
+        config.set("global", "default_profile", formatted_key_name)
 
         with open(configpath, "w") as configfile:
             config.write(configfile)
@@ -174,7 +174,7 @@ def bf_add_account_api_key(keyname, key, secret):
         token = get_access_token()
     except Exception as e:
         namespace_logger.error(e)
-        bf_delete_account(keyname)
+        bf_delete_account(formatted_key_name)
         abort(401, 
             "Please check that key name, key, and secret are entered properly"
         )
@@ -195,7 +195,7 @@ def bf_add_account_api_key(keyname, key, secret):
             config.add_section("global")
 
         default_acc = config["global"]
-        default_acc["default_profile"] = keyname
+        default_acc["default_profile"] = formatted_key_name
 
         with open(configpath, "w") as configfile:
             config.write(configfile)
@@ -203,7 +203,7 @@ def bf_add_account_api_key(keyname, key, secret):
         return {"message": f"Successfully added account {str(bf)}"}
 
     except Exception as e:
-        bf_delete_account(keyname)
+        bf_delete_account(formatted_key_name)
         raise e
     
 def check_forbidden_characters_ps(my_string):
@@ -279,7 +279,7 @@ def bf_get_accounts():
                 lowercase_account_names(config, default_profile, configpath)
                 try:
                     get_access_token()
-                    return default_profile.lower()
+                    return format_agent_profile_name(default_profile)
                 except Exception as e:
                     print(e)
     else:
@@ -300,7 +300,7 @@ def bf_get_accounts():
 
                         lowercase_account_names(config, account, configpath)
                         
-                        return account.lower()
+                        return format_agent_profile_name(account)
     return ""
 
 
diff --git a/pyflask/startup/minimumApiVersion.py b/pyflask/startup/minimumApiVersion.py
index 1a603342d..cc3c27aae 100644
--- a/pyflask/startup/minimumApiVersion.py
+++ b/pyflask/startup/minimumApiVersion.py
@@ -4,4 +4,4 @@ def get_api_version():
     """
     Returns the version of the API
     """
-    return {'version': os.getenv('API_VERSION', "12.4.1")}
+    return {'version': os.getenv('API_VERSION', "12.4.2")}
diff --git a/pyflask/users/user.py b/pyflask/users/user.py
index e9b4e10bd..f19b14263 100644
--- a/pyflask/users/user.py
+++ b/pyflask/users/user.py
@@ -1,6 +1,7 @@
 import requests
 from os.path import join, expanduser, exists
 from configparser import ConfigParser
+from configUtils import format_agent_profile_name
 from constants import PENNSIEVE_URL
 from utils import (
     create_request_headers,
@@ -74,6 +75,8 @@ def get_user_information(token):
 
 
 def set_preferred_organization(organization_id, email, password, account_name):
+    # format the keyname to lowercase and replace '.' with '_'
+    formatted_account_name = format_agent_profile_name(account_name)
     try:
         token = get_cognito_userpool_access_token(email, password)
 
@@ -137,14 +140,15 @@ def set_preferred_organization(organization_id, email, password, account_name):
               organization = org["organization"]["name"]
 
       # create an updated profile name that is unqiue to the user and their workspace 
-      account_name = f"{account_name}-{email_sub}-{organization}"
+      formatted_account_name = format_agent_profile_name(f"{account_name}-{email_sub}-{organization}")
+
              
     except Exception as e:
        raise e 
     
     try:
       # create the new profile for the user, associate the api key and secret with the profile, and set it as the default profile
-      bf_add_account_username(account_name, key, secret)
+      bf_add_account_username(formatted_account_name, key, secret)
     except Exception as e:
       raise e
     
@@ -176,15 +180,18 @@ def get_user_organizations():
 userpath = expanduser("~")
 configpath = join(userpath, ".pennsieve", "config.ini")
 def update_config_account_name(accountname):
+  # format the keyname to lowercase and replace '.' with '_'
+  formatted_account_name = format_agent_profile_name(accountname)
+
   if exists(configpath):
       config = ConfigParser()
       config.read(configpath)
 
   if not config.has_section("global"):
       config.add_section("global")
-      config.set("global", "default_profile", accountname)
+      config.set("global", "default_profile", formatted_account_name)
   else:
-      config["global"]["default_profile"] = accountname
+      config["global"]["default_profile"] = formatted_account_name
 
   with open(configpath, "w") as configfile:
       config.write(configfile)
\ No newline at end of file
diff --git a/scripts/meta/announcements.json b/scripts/meta/announcements.json
index 1da206160..a1ffe29c4 100644
--- a/scripts/meta/announcements.json
+++ b/scripts/meta/announcements.json
@@ -1,4 +1,10 @@
 {
+  "12.4.2": {
+    "announcements": {
+      "bug-fixes": ["Fixed Pennsieve login bug for accounts with Emails containing periods."],
+      "features": []
+    }
+  },
   "12.4.1": {
     "announcements": {
       "features": [