diff --git a/nfu_ecommerce/README.rst b/nfu_ecommerce/README.rst
index e4754b0..0de0aae 100644
--- a/nfu_ecommerce/README.rst
+++ b/nfu_ecommerce/README.rst
@@ -22,10 +22,17 @@ NFU eCommerce
 
 |badge1| |badge2| |badge3|
 
-This module adds a maximum order quantity field to Website Sale Orders. It also adds
-an ordered qantitiy field to store the original ordered quantity in case a manager
-adjustes the uom quantitiy. In webshop checkout it adds the customer balance to before
-and after the current order.
+This module adds 
+
+- a maximum order quantity field to Website Sale Orders
+- ordered qantitiy field to store the original ordered quantity in case a manager
+  adjustes the uom quantitiy
+
+In webshop checkout it adds
+
+- the customer balance to before and after the current order
+- a configuration to warn when credit is low
+- a possibility to only use credit for ordering
 
 **Table of contents**
 
@@ -44,6 +51,7 @@ Changelog
 :1.3.0: Adapt new Open Packages format and add indicators
 :1.3.1: Remove Max Qty from first page
 :1.3.2: Add decimal to ribbon
+:1.4.0: Add credit warning and avoid debts option
 
 Bug Tracker
 ===========
diff --git a/nfu_ecommerce/__manifest__.py b/nfu_ecommerce/__manifest__.py
index cdb369e..7c57cdc 100644
--- a/nfu_ecommerce/__manifest__.py
+++ b/nfu_ecommerce/__manifest__.py
@@ -4,7 +4,7 @@
     "author": "BAKEUP",
     "website": "https://www.bakeup.org",
     "category": "website",
-    "version": "16.0.1.3.2",
+    "version": "16.0.1.4.0",
     "depends": [
         "sale_product_configurator",
         "website_sale",
@@ -12,11 +12,14 @@
         "website_decimal_quantity",
         "nfu_product_bnn_attributes",
     ],
-    "data": ["views/product_template_views.xml", "views/templates.xml"],
+    "data": [
+        "views/res_config_settings_views.xml",
+        "views/product_template_views.xml",
+        "views/templates.xml",
+    ],
     "assets": {
         "web.assets_frontend": [
-            "nfu_ecommerce/static/src/js/website_sale.js",
-            "nfu_ecommerce/static/src/js/sale_product_configurator.js",
+            "nfu_ecommerce/static/src/js/*.js",
         ]
     },
     "license": "LGPL-3",
diff --git a/nfu_ecommerce/i18n/de.po b/nfu_ecommerce/i18n/de.po
index d53d1a0..7dfacb6 100644
--- a/nfu_ecommerce/i18n/de.po
+++ b/nfu_ecommerce/i18n/de.po
@@ -6,8 +6,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Odoo Server 16.0\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-10-04 19:54+0000\n"
-"PO-Revision-Date: 2024-10-04 19:54+0000\n"
+"POT-Creation-Date: 2025-07-24 18:34+0000\n"
+"PO-Revision-Date: 2025-07-24 18:34+0000\n"
 "Last-Translator: \n"
 "Language-Team: \n"
 "MIME-Version: 1.0\n"
@@ -22,6 +22,7 @@ msgstr "<span>Max Menge</span>"
 
 #. module: nfu_ecommerce
 #: model_terms:ir.ui.view,arch_db:nfu_ecommerce.cart_lines_packaging
+#: model_terms:ir.ui.view,arch_db:nfu_ecommerce.product_max_quantity_config
 msgid "Add one"
 msgstr "Einen hinzufügen"
 
@@ -31,6 +32,12 @@ msgstr "Einen hinzufügen"
 msgid "All Products"
 msgstr "Alle Produkte"
 
+#. module: nfu_ecommerce
+#: model:ir.model.fields,field_description:nfu_ecommerce.field_res_config_settings__website_avoid_depts
+#: model:ir.model.fields,field_description:nfu_ecommerce.field_website__avoid_depts
+msgid "Avoid depths"
+msgstr "Schulden verhindern"
+
 #. module: nfu_ecommerce
 #: model:ir.model.fields,field_description:nfu_ecommerce.field_sale_order__balance
 msgid "Balance"
@@ -42,10 +49,22 @@ msgid "Balance:"
 msgstr "Aktuelles Guthaben:"
 
 #. module: nfu_ecommerce
-#: model_terms:ir.ui.view,arch_db:nfu_ecommerce.cart_lines_packaging
-#: model_terms:ir.ui.view,arch_db:nfu_ecommerce.cart_summary_packaging
-msgid "Max Ordered Quantity:"
-msgstr "Max Menge"
+#: model:ir.model,name:nfu_ecommerce.model_res_config_settings
+msgid "Config Settings"
+msgstr "Konfigurationseinstellungen"
+
+#. module: nfu_ecommerce
+#: model:ir.model.fields,field_description:nfu_ecommerce.field_res_config_settings__website_credit_warning_level
+#: model:ir.model.fields,field_description:nfu_ecommerce.field_website__credit_warning_level
+#: model_terms:ir.ui.view,arch_db:nfu_ecommerce.res_config_settings_view_form
+msgid "Credit Warning"
+msgstr "Guthabenwarnung"
+
+#. module: nfu_ecommerce
+#: model:ir.model.fields,field_description:nfu_ecommerce.field_product_product__is_published
+#: model:ir.model.fields,field_description:nfu_ecommerce.field_product_template__is_published
+msgid "Is Published"
+msgstr "Ist veröffentlicht"
 
 #. module: nfu_ecommerce
 #: model_terms:ir.ui.view,arch_db:nfu_ecommerce.cart_summary_packaging
@@ -57,17 +76,6 @@ msgstr "Max Menge:"
 msgid "New balance:"
 msgstr "Neues Guthaben:"
 
-#. module: nfu_ecommerce
-#: model_terms:ir.ui.view,arch_db:nfu_ecommerce.cart_lines_packaging
-msgid "No open package available"
-msgstr "Keine offenen Gebinde"
-
-#. module: nfu_ecommerce
-#: model_terms:ir.ui.view,arch_db:nfu_ecommerce.cart_lines_packaging
-#: model_terms:ir.ui.view,arch_db:nfu_ecommerce.cart_summary_packaging
-msgid "Open Package:"
-msgstr "Offenes Gebinde:"
-
 #. module: nfu_ecommerce
 #: model_terms:ir.ui.view,arch_db:nfu_ecommerce.o_wsale_offcanvas
 #: model_terms:ir.ui.view,arch_db:nfu_ecommerce.products_open_packaging
@@ -75,9 +83,14 @@ msgid "Open Packagings"
 msgstr "Offene Gebinde"
 
 #. module: nfu_ecommerce
-#: model:ir.model.fields,field_description:nfu_ecommerce.field_sale_order_line__open_qty
-msgid "Open Qty"
-msgstr "Offene Menge"
+#: model_terms:ir.ui.view,arch_db:nfu_ecommerce.cart_lines_packaging
+msgid "Packaging Size:"
+msgstr "Verpackungsgröße:"
+
+#. module: nfu_ecommerce
+#: model_terms:ir.ui.view,arch_db:nfu_ecommerce.res_config_settings_view_form
+msgid "Prevent Customers from Ordering more than their Credit."
+msgstr "Verhindere das Kunden mehr Kaufen als mit ihrem Guthaben möglich"
 
 #. module: nfu_ecommerce
 #: model:ir.model,name:nfu_ecommerce.model_product_template
@@ -91,19 +104,20 @@ msgstr "Veröffentlichen"
 
 #. module: nfu_ecommerce
 #: model_terms:ir.ui.view,arch_db:nfu_ecommerce.cart_lines_packaging
+#: model_terms:ir.ui.view,arch_db:nfu_ecommerce.product_max_quantity_config
 msgid "Remove one"
 msgstr "Eins entfernen"
 
+#. module: nfu_ecommerce
+#: model:ir.model,name:nfu_ecommerce.model_sale_order_batch_product
+msgid "Sale Order Batch Product"
+msgstr ""
+
 #. module: nfu_ecommerce
 #: model:ir.model,name:nfu_ecommerce.model_sale_order
 msgid "Sales Order"
 msgstr "Verkaufsauftrag"
 
-#. module: nfu_ecommerce
-#: model:ir.model,name:nfu_ecommerce.model_sale_order_line
-msgid "Sales Order Line"
-msgstr "Verkaufsauftragszeile"
-
 #. module: nfu_ecommerce
 #: model_terms:ir.ui.view,arch_db:nfu_ecommerce.product_template_tree_view
 msgid "Unpublish on Website"
@@ -118,3 +132,25 @@ msgstr "Zukünftiges Guthaben"
 #: model_terms:ir.ui.view,arch_db:nfu_ecommerce.cart_lines_packaging
 msgid "Warning"
 msgstr "Warnung"
+
+#. module: nfu_ecommerce
+#: model:ir.model,name:nfu_ecommerce.model_website
+msgid "Website"
+msgstr ""
+
+#. module: nfu_ecommerce
+#: model:ir.model.fields,help:nfu_ecommerce.field_res_config_settings__website_credit_warning_level
+#: model:ir.model.fields,help:nfu_ecommerce.field_website__credit_warning_level
+msgid ""
+"When the credit of a customer is lower than the warning level the credit is "
+"shown in red on the website."
+msgstr ""
+"Wenn das Guthaben niedriger ist als die Guthabenswarnung wird das Guthaben "
+"auf der website in rot angezeigt."
+
+#. module: nfu_ecommerce
+#. odoo-python
+#: code:addons/nfu_ecommerce/models/sale_order.py:0
+#, python-format
+msgid "You don't have enough credit."
+msgstr "Du hast nicht genug Guthaben."
diff --git a/nfu_ecommerce/models/__init__.py b/nfu_ecommerce/models/__init__.py
index 8cd19eb..52e4b11 100644
--- a/nfu_ecommerce/models/__init__.py
+++ b/nfu_ecommerce/models/__init__.py
@@ -1,3 +1,5 @@
 from . import product_template
+from . import res_config_settings
 from . import sale_order
 from . import sale_order_batch_product
+from . import website
diff --git a/nfu_ecommerce/models/res_config_settings.py b/nfu_ecommerce/models/res_config_settings.py
new file mode 100644
index 0000000..2c543cc
--- /dev/null
+++ b/nfu_ecommerce/models/res_config_settings.py
@@ -0,0 +1,12 @@
+from odoo import fields, models
+
+
+class ResConfigSettings(models.TransientModel):
+    _inherit = "res.config.settings"
+
+    website_credit_warning_level = fields.Monetary(
+        related="website_id.credit_warning_level", readonly=False
+    )
+    website_avoid_depts = fields.Boolean(
+        related="website_id.avoid_depts", readonly=False
+    )
diff --git a/nfu_ecommerce/models/sale_order.py b/nfu_ecommerce/models/sale_order.py
index 668a344..f3f63bc 100644
--- a/nfu_ecommerce/models/sale_order.py
+++ b/nfu_ecommerce/models/sale_order.py
@@ -1,4 +1,5 @@
-from odoo import api, fields, models
+from odoo import _, api, fields, models
+from odoo.exceptions import ValidationError
 
 
 class SaleOrder(models.Model):
@@ -18,6 +19,14 @@ class SaleOrder(models.Model):
                 order.amount_total / order.currency_rate
             )
 
+    @api.constrains("amount_total")
+    def _check_amount_total(self):
+        for order in self:
+            if order.state != "draft" or not order.website_id:
+                continue
+            if order.website_id.avoid_depts and order.updated_balance < 0:
+                raise ValidationError(_("You don't have enough credit."))
+
     def _prepare_order_line_values(
         self,
         product_id,
diff --git a/nfu_ecommerce/models/website.py b/nfu_ecommerce/models/website.py
new file mode 100644
index 0000000..3ed6649
--- /dev/null
+++ b/nfu_ecommerce/models/website.py
@@ -0,0 +1,12 @@
+from odoo import fields, models
+
+
+class Website(models.Model):
+    _inherit = "website"
+
+    credit_warning_level = fields.Monetary(
+        string="Credit Warning",
+        readonly=False,
+        help="When the credit of a customer is lower than the warning level the credit is shown in red on the website.",
+    )
+    avoid_depts = fields.Boolean(string="Avoid depths")
diff --git a/nfu_ecommerce/readme/DESCRIPTION.rst b/nfu_ecommerce/readme/DESCRIPTION.rst
index 93d25c8..3f11f32 100644
--- a/nfu_ecommerce/readme/DESCRIPTION.rst
+++ b/nfu_ecommerce/readme/DESCRIPTION.rst
@@ -1,4 +1,11 @@
-This module adds a maximum order quantity field to Website Sale Orders. It also adds
-an ordered qantitiy field to store the original ordered quantity in case a manager
-adjustes the uom quantitiy. In webshop checkout it adds the customer balance to before
-and after the current order.
\ No newline at end of file
+This module adds 
+
+- a maximum order quantity field to Website Sale Orders
+- ordered qantitiy field to store the original ordered quantity in case a manager
+  adjustes the uom quantitiy
+
+In webshop checkout it adds
+
+- the customer balance to before and after the current order
+- a configuration to warn when credit is low
+- a possibility to only use credit for ordering
\ No newline at end of file
diff --git a/nfu_ecommerce/readme/HISTORY.rst b/nfu_ecommerce/readme/HISTORY.rst
index ed5ed78..6682056 100644
--- a/nfu_ecommerce/readme/HISTORY.rst
+++ b/nfu_ecommerce/readme/HISTORY.rst
@@ -6,4 +6,5 @@
 :1.2.0: Add Open Packages to Product list
 :1.3.0: Adapt new Open Packages format and add indicators
 :1.3.1: Remove Max Qty from first page
-:1.3.2: Add decimal to ribbon
\ No newline at end of file
+:1.3.2: Add decimal to ribbon
+:1.4.0: Add credit warning and avoid debts option
\ No newline at end of file
diff --git a/nfu_ecommerce/static/description/index.html b/nfu_ecommerce/static/description/index.html
index 3378c3d..7a80701 100644
--- a/nfu_ecommerce/static/description/index.html
+++ b/nfu_ecommerce/static/description/index.html
@@ -370,10 +370,18 @@ ul.auto-toc {
 !! source digest: sha256:4dfaea54e4d01502b433eb5c0dcca409a5fbe2c3f175e29382a19230343183c9
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
 <p><a class="reference external image-reference" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external image-reference" href="http://www.gnu.org/licenses/lgpl-3.0-standalone.html"><img alt="License: LGPL-3" src="https://img.shields.io/badge/licence-LGPL--3-blue.png" /></a> <a class="reference external image-reference" href="https://github.com/bruecksen/nfu/tree/16.0/nfu_ecommerce"><img alt="bruecksen/nfu" src="https://img.shields.io/badge/github-bruecksen%2Fnfu-lightgray.png?logo=github" /></a></p>
-<p>This module adds a maximum order quantity field to Website Sale Orders. It also adds
-an ordered qantitiy field to store the original ordered quantity in case a manager
-adjustes the uom quantitiy. In webshop checkout it adds the customer balance to before
-and after the current order.</p>
+<p>This module adds</p>
+<ul class="simple">
+<li>a maximum order quantity field to Website Sale Orders</li>
+<li>ordered qantitiy field to store the original ordered quantity in case a manager
+adjustes the uom quantitiy</li>
+</ul>
+<p>In webshop checkout it adds</p>
+<ul class="simple">
+<li>the customer balance to before and after the current order</li>
+<li>a configuration to warn when credit is low</li>
+<li>a possibility to only use credit for ordering</li>
+</ul>
 <p><strong>Table of contents</strong></p>
 <div class="contents local topic" id="contents">
 <ul class="simple">
@@ -411,6 +419,8 @@ and after the current order.</p>
 </tr>
 <tr class="field"><th class="field-name">1.3.2:</th><td class="field-body">Add decimal to ribbon</td>
 </tr>
+<tr class="field"><th class="field-name">1.4.0:</th><td class="field-body">Add credit warning and avoid debts option</td>
+</tr>
 </tbody>
 </table>
 </div>
diff --git a/nfu_ecommerce/views/res_config_settings_views.xml b/nfu_ecommerce/views/res_config_settings_views.xml
new file mode 100644
index 0000000..33b835a
--- /dev/null
+++ b/nfu_ecommerce/views/res_config_settings_views.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="res_config_settings_view_form" model="ir.ui.view">
+        <field name="name">res.config.settings.view.form.inherit.nfu.eccommerce</field>
+        <field name="model">res.config.settings</field>
+        <field name="inherit_id" ref="website_sale.res_config_settings_view_form"/>
+        <field name="arch" type="xml">
+            <div id="website_shop_checkout" position="inside">
+                <div class="col-12 col-lg-6 o_setting_box">
+                    <div class="o_setting_right_pane">
+                        <div class="content-group">
+                            <div class="row mt16">
+                                <label
+                                    class="o_light_label col-lg-3"
+                                    string="Credit Warning"
+                                    for="website_credit_warning_level"
+                                />
+                                <field name="website_credit_warning_level"/>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+                <div class="col-12 col-lg-6 o_setting_box">
+                    <div class="o_setting_left_pane">
+                        <field name="website_avoid_depts"/>
+                    </div>
+                    <div class="o_setting_right_pane">
+                        <label for="website_avoid_depts"/>
+                        <div class="text-muted">
+                            Prevent Customers from Ordering more than their Credit.
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </field>
+    </record>
+</odoo>
diff --git a/nfu_ecommerce/views/templates.xml b/nfu_ecommerce/views/templates.xml
index 6a6b661..7d356df 100644
--- a/nfu_ecommerce/views/templates.xml
+++ b/nfu_ecommerce/views/templates.xml
@@ -264,7 +264,7 @@
                       <td class="text-xl-end border-0">
                           <span
                         t-field="website_sale_order.balance"
-                        class="monetary_field"
+                        t-att-class="'monetary_field' + (' text-danger' if website_sale_order.balance &lt; website.credit_warning_level else '')"
                         style="white-space: nowrap;"
                         t-options="{'widget': 'monetary', 'display_currency': website_sale_order.currency_id}"
                     />
@@ -275,22 +275,12 @@
                   <tr id="updated_balance">
                       <td class="text-end border-0">New balance:</td>
                       <td class="text-xl-end border-0">
-                        <t t-if="website_sale_order.updated_balance &lt; 0">
-                          <span
-                            t-field="website_sale_order.updated_balance"
-                            class="monetary_field text-danger"
-                            style="white-space: nowrap;"
-                            t-options="{'widget': 'monetary', 'display_currency': website_sale_order.currency_id}"
-                        />
-                        </t>
-                        <t t-else="">
-                          <span
-                            t-field="website_sale_order.updated_balance"
-                            t-att-class="monetary_field"
-                            style="white-space: nowrap;"
-                            t-options="{'widget': 'monetary', 'display_currency': website_sale_order.currency_id}"
-                        />
-                        </t>
+                        <span
+                        t-field="website_sale_order.updated_balance"
+                        t-att-class="'monetary_field' + (' text-danger' if website_sale_order.updated_balance &lt; website.credit_warning_level else '')"
+                        style="white-space: nowrap;"
+                        t-options="{'widget': 'monetary', 'display_currency': website_sale_order.currency_id}"
+                    />
                       </td>
                   </tr>
         </xpath>
diff --git a/website_decimal_quantity/README.rst b/website_decimal_quantity/README.rst
index 76bd763..e68645f 100644
--- a/website_decimal_quantity/README.rst
+++ b/website_decimal_quantity/README.rst
@@ -16,9 +16,9 @@ Website Decimal Quantity
 .. |badge2| image:: https://img.shields.io/badge/licence-AGPL--3-blue.png
     :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
     :alt: License: AGPL-3
-.. |badge3| image:: https://img.shields.io/badge/github-bruecksen%2Fife_nfu-lightgray.png?logo=github
-    :target: https://github.com/bruecksen/ife_nfu/tree/16.0/website_decimal_quantity
-    :alt: bruecksen/ife_nfu
+.. |badge3| image:: https://img.shields.io/badge/github-bruecksen%2Fnfu-lightgray.png?logo=github
+    :target: https://github.com/bruecksen/nfu/tree/16.0/website_decimal_quantity
+    :alt: bruecksen/nfu
 
 |badge1| |badge2| |badge3|
 
@@ -39,10 +39,10 @@ Changelog
 Bug Tracker
 ===========
 
-Bugs are tracked on `GitHub Issues <https://github.com/bruecksen/ife_nfu/issues>`_.
+Bugs are tracked on `GitHub Issues <https://github.com/bruecksen/nfu/issues>`_.
 In case of trouble, please check there if your issue has already been reported.
 If you spotted it first, help us to smash it by providing a detailed and welcomed
-`feedback <https://github.com/bruecksen/ife_nfu/issues/new?body=module:%20website_decimal_quantity%0Aversion:%2016.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+`feedback <https://github.com/bruecksen/nfu/issues/new?body=module:%20website_decimal_quantity%0Aversion:%2016.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
 
 Do not contact contributors directly about support or help with technical issues.
 
@@ -64,6 +64,6 @@ Contributors
 Maintainers
 ~~~~~~~~~~~
 
-This module is part of the `bruecksen/ife_nfu <https://github.com/bruecksen/ife_nfu/tree/16.0/website_decimal_quantity>`_ project on GitHub.
+This module is part of the `bruecksen/nfu <https://github.com/bruecksen/nfu/tree/16.0/website_decimal_quantity>`_ project on GitHub.
 
 You are welcome to contribute.
diff --git a/website_decimal_quantity/models/sale_order.py b/website_decimal_quantity/models/sale_order.py
index 8b58b25..7bb4a1c 100644
--- a/website_decimal_quantity/models/sale_order.py
+++ b/website_decimal_quantity/models/sale_order.py
@@ -89,12 +89,12 @@ class SaleOrder(models.Model):
             set_qty = 0
         quantity = 0
         if set_qty:
-            quantity = set_qty
+            quantity = int(set_qty)
         elif add_qty is not None:
             if order_line:
-                quantity = order_line.product_uom_qty + (add_qty or 0)
+                quantity = order_line.product_uom_qty + (int(add_qty) or 0)
             else:
-                quantity = add_qty or 0
+                quantity = int(add_qty) or 0
         if quantity > 0:
             quantity, warning = self._verify_updated_quantity(
                 order_line, product_id, quantity, **kwargs