diff --git a/atst/utils/flash.py b/atst/utils/flash.py
index 465d1f9b..49197c6b 100644
--- a/atst/utils/flash.py
+++ b/atst/utils/flash.py
@@ -29,9 +29,9 @@ MESSAGES = {
         "category": "success",
     },
     "new_portfolio_member": {
-        "title_template": "Success!",
+        "title_template": """{{ "flash.success" | translate }}""",
         "message_template": """
-          <p>You have successfully invited {{ new_member.user_name }} to the portfolio.</p>
+          <p>{{ "flash.new_portfolio_member" | translate({ "user_name": new_member.user_name }) }}</p>
         """,
         "category": "success",
     },
@@ -112,20 +112,18 @@ MESSAGES = {
         "category": "success",
     },
     "task_order_congrats": {
-        "title_template": "Congrats!",
-        "message_template": """
-        You've created a new JEDI portfolio and jump-started your first task order!
-        """,
+        "title_template": """{{ "flash.congrats" | translate }}""",
+        "message_template": """{{ "flash.new_portfolio" | translate }}""",
         "actions": """
             {% from "components/icon.html" import Icon %}
             <div class='alert__actions'>
               <a href='{{ url_for("portfolios.show_portfolio", portfolio_id=portfolio.id) }}' class='icon-link'>
                 {{ Icon('shield') }}
-                <span>Go to my portfolio home page</span>
+                <span>{{ "flash.portfolio_home" | translate }}</span>
               </a>
               <a href='#next-steps' class='icon-link'>
                 {{ Icon('arrow-down') }}
-                <span>Review next steps below</span>
+                <span>{{ "flash.next_steps" | translate }}</span>
               </a>
             </div>
         """,
@@ -139,8 +137,8 @@ MESSAGES = {
         "category": "error",
     },
     "portfolio_member_removed": {
-        "title_template": "Portfolio member deleted",
-        "message_template": "You have successfully deleted {{ member_name }} from the portfolio.",
+        "title_template": """{{ "flash.deleted_member" | translate }}""",
+        "message_template": """{{ "flash.delete_member_success" | translate({ "member_name": member_name }) }}""",
         "category": "success",
     },
 }
diff --git a/translations.yaml b/translations.yaml
index 3fab9755..fdfcc5b5 100644
--- a/translations.yaml
+++ b/translations.yaml
@@ -17,6 +17,15 @@ base_public:
   header_title: JEDI Cloud
   login: Log in
   title_tag: JEDI Cloud
+flash:
+  new_portfolio_member: You have successfully invited {user_name} to the portfolio.
+  success: Success!
+  congrats: Congrats!
+  new_portfolio: You've created a new JEDI portfolio and jump-started your first task order!
+  portfolio_home: Go to my portfolio home page
+  next_steps: Review next steps below
+  deleted_member: Portfolio member deleted
+  delete_member_success: You have successfully deleted {member_name} from the portfolio.
 common:
   back: Back
   edit: Edit