Allow to add a custom text above the invoice address

src/pretix/base/settings.py

@@ -73,6 +73,10 @@ DEFAULTS = {
         'default': 'False',
         'type': bool,
     },
+    'invoice_address_explanation_text': {
+        'default': '',
+        'type': LazyI18nString
+    },
     'invoice_include_free': {
         'default': 'True',
         'type': bool,

src/pretix/control/forms/event.py

@@ -627,6 +627,13 @@ class InvoiceSettingsForm(SettingsForm):
                     "products."),
         required=False
     )
+    invoice_address_explanation_text = I18nFormField(
+        label=_("Invoice address explanation"),
+        required=False,
+        widget=I18nTextarea,
+        widget_kwargs={'attrs': {'rows': '2'}},
+        help_text=_("This text will be shown above the invoice address form during checkout.")
+    )
     invoice_numbers_consecutive = forms.BooleanField(
         label=_("Generate invoices with consecutive numbers"),
         help_text=_("If deactivated, the order code will be used in the invoice number."),

src/pretix/control/templates/pretixcontrol/event/invoicing.html

@@ -42,6 +42,7 @@
             {% bootstrap_field form.invoice_additional_text layout="control" %}
             {% bootstrap_field form.invoice_footer_text layout="control" %}
             {% bootstrap_field form.invoice_logo_image layout="control" %}
+            {% bootstrap_field form.invoice_address_explanation_text layout="control" %}
         </fieldset>
         <div class="form-group submit-group">
             <button type="submit" class="btn btn-default btn-lg" name="preview" value="preview" formtarget="_blank">

src/pretix/presale/templates/pretixpresale/event/checkout_questions.html

@@ -1,6 +1,7 @@
 {% extends "pretixpresale/event/checkout_base.html" %}
 {% load i18n %}
 {% load bootstrap3 %}
+{% load rich_text %}
 {% block inner %}
     <p>{% trans "Before we continue, we need you to answer some questions." %}</p>
     <p class="required-legend">
@@ -40,6 +41,11 @@
                     </summary>
                     <div id="invoice">
                         <div class="panel-body">
+                            {% if event.settings.invoice_address_explanation_text %}
+                                <div>
+                                    {{ event.settings.invoice_address_explanation_text|rich_text }}
+                                </div>
+                            {% endif %}
                             {% bootstrap_form invoice_form layout="horizontal" %}
                         </div>
                     </div>

src/pretix/presale/templates/pretixpresale/event/order_modify.html

@@ -1,6 +1,7 @@
 {% extends "pretixpresale/event/base.html" %}
 {% load i18n %}
 {% load bootstrap3 %}
+{% load rich_text %}
 {% block title %}{% trans "Modify order" %}{% endblock %}
 {% block content %}
     <h2>
@@ -37,6 +38,11 @@
                     </summary>
                     <div id="invoice" class="panel-collapse">
                         <div class="panel-body">
+                            {% if event.settings.invoice_address_explanation_text %}
+                                <div>
+                                    {{ event.settings.invoice_address_explanation_text|rich_text }}
+                                </div>
+                            {% endif %}
                             {% bootstrap_form invoice_form layout="horizontal" %}
                         </div>
                     </div>