diff --git a/bemani/frontend/app.py b/bemani/frontend/app.py
index 288dd8c..f326259 100644
--- a/bemani/frontend/app.py
+++ b/bemani/frontend/app.py
@@ -353,6 +353,9 @@ def navigation() -> Dict[str, Any]:
         for f in os.listdir(os.path.join(static_location, "components"))
         if re.search(r"\.react\.js$", f)
     ]
+    custom_config = {}
+    if g.config.server.allow_raw_ids:
+        custom_config['allow_raw_ids'] = True
 
     # Look up the logged in user ID.
     try:
@@ -366,6 +369,7 @@ def navigation() -> Dict[str, Any]:
                 "assets": f"themes/{config.theme}/",
                 "theme_url": jinja2_theme,
                 "cache_bust": f"v={FRONTEND_CACHE_BUST}",
+                "custom_config": custom_config,
             }
     except AttributeError:
         # If we are trying to render a 500 error and we couldn't even run the
@@ -377,6 +381,7 @@ def navigation() -> Dict[str, Any]:
             "assets": f"themes/{config.theme}/",
             "theme_url": jinja2_theme,
             "cache_bust": f"v={FRONTEND_CACHE_BUST}",
+            "custom_config": custom_config,
         }
 
     pages: List[Dict[str, Any]] = []
@@ -985,4 +990,5 @@ def navigation() -> Dict[str, Any]:
         "assets": f"themes/{config.theme}/",
         "theme_url": jinja2_theme,
         "cache_bust": f"v={FRONTEND_CACHE_BUST}",
+        "custom_config": custom_config,
     }
diff --git a/bemani/frontend/static/controllers/account/cards.react.js b/bemani/frontend/static/controllers/account/cards.react.js
index 5a8aa8c..d899a3c 100644
--- a/bemani/frontend/static/controllers/account/cards.react.js
+++ b/bemani/frontend/static/controllers/account/cards.react.js
@@ -85,6 +85,18 @@ var card_management = createReactClass({
                 </div>
                 <div className="section">
                     <h3>Add Card</h3>
+                    {
+                        window.config['allow_raw_ids'] ?
+                            <p>
+                                Enter the 16 digit code found on the back of an e-AMUSEMENT card or displayed
+                                in-game when you scan an Amusement IC card. For convenience, you can also enter
+                                the raw 16 digit card ID usually starting with <code>E004</code>.
+                            </p> :
+                            <p>
+                                Enter the 16 digit code found on the back of an e-AMUSEMENT card or displayed
+                                in-game when you scan an Amusement IC card.
+                            </p>
+                    }
                     <form onSubmit={this.addNewCard}>
                         <input
                             type="text"
diff --git a/bemani/frontend/templates/account/recover.html b/bemani/frontend/templates/account/recover.html
index 38be1df..2d6fa30 100644
--- a/bemani/frontend/templates/account/recover.html
+++ b/bemani/frontend/templates/account/recover.html
@@ -11,6 +11,16 @@
                     Enter the card number and PIN of a card that you've previously linked
                     to your account. Any linked card will work as long as you also enter
                     the correct PIN and the username of the account the card is linked to.
+                    {% if custom_config.get("allow_raw_ids", False) %}
+                         The card number is the 16 digit code found on the back of an
+                         e-AMUSEMENT card or displayed in-game when you scan an Amusement
+                         IC card. For convenience, you can also enter the raw 16 digit card
+                         ID usually starting with <code>E004</code>.
+                    {% else %}
+                         The card number is the 16 digit code found on the back of an
+                         e-AMUSEMENT card or displayed in-game when you scan an Amusement
+                         IC card.
+                    {% endif %}
                 </p>
             {% endif %}
             <dl>
diff --git a/bemani/frontend/templates/account/register.html b/bemani/frontend/templates/account/register.html
index ac1927c..c30c1c2 100644
--- a/bemani/frontend/templates/account/register.html
+++ b/bemani/frontend/templates/account/register.html
@@ -9,6 +9,16 @@
                 one credit on a game linked to this network. If you have not done so you cannot
                 register an account. Enter the card number and PIN of the card you have used to
                 play on this network.
+                {% if custom_config.get("allow_raw_ids", False) %}
+                    The card number is the 16 digit code found on the back of an
+                    e-AMUSEMENT card or displayed in-game when you scan an Amusement
+                    IC card. For convenience, you can also enter the raw 16 digit card
+                    ID usually starting with <code>E004</code>.
+                {% else %}
+                    The card number is the 16 digit code found on the back of an
+                    e-AMUSEMENT card or displayed in-game when you scan an Amusement
+                    IC card.
+                {% endif %}
             </p>
             <dl>
                 <dt>Card Number (found on back of e-AMUSEMENT card)</dt>
diff --git a/bemani/frontend/templates/base.html b/bemani/frontend/templates/base.html
index f4c09ca..3a17cbd 100644
--- a/bemani/frontend/templates/base.html
+++ b/bemani/frontend/templates/base.html
@@ -152,6 +152,7 @@
                 {% endfor %}
             {% endif %}
             window.assets = {{ assets|tojson|safe }};
+            window.config = {{ custom_config|tojson|safe }};
         </script>
         <script type="text/javascript">
             $(function () {