diff --git a/lib/mv_web/live/global_settings_live.ex b/lib/mv_web/live/global_settings_live.ex
index 9d3bec9..e35b064 100644
--- a/lib/mv_web/live/global_settings_live.ex
+++ b/lib/mv_web/live/global_settings_live.ex
@@ -140,21 +140,19 @@ defmodule MvWeb.GlobalSettingsLive do
           <div role="note" class="alert alert-info mb-4">
             <.icon name="hero-information-circle" class="size-5" aria-hidden="true" />
             <div>
-              <p class="font-semibold mb-1">
-                {gettext("Custom Fields in CSV Import")}
-              </p>
+
               <p class="text-sm mb-2">
                 {gettext(
-                  "Custom fields must be created in Mila before importing. Use the custom field name as the CSV column header. Unknown custom field columns will be ignored with a warning."
+                  "Use the data field name as the CSV column header in your file. Data fields must exist in Mila before importing, so they must be listed in the list of memberdate (like e-mail or first name). Unknown data field columns will be ignored with a warning."
                 )}
               </p>
               <p class="text-sm">
                 <.link
                   href="#custom_fields"
-                  class="link link-primary"
+                  class="link"
                   data-testid="custom-fields-link"
                 >
-                  {gettext("Manage Custom Fields")}
+                  {gettext("Manage Memberdata")}
                 </.link>
               </p>
             </div>
diff --git a/priv/gettext/de/LC_MESSAGES/default.po b/priv/gettext/de/LC_MESSAGES/default.po
index d650aa2..0db43c7 100644
--- a/priv/gettext/de/LC_MESSAGES/default.po
+++ b/priv/gettext/de/LC_MESSAGES/default.po
@@ -1985,11 +1985,6 @@ msgstr "CSV Datei"
 msgid "CSV files only, maximum 10 MB"
 msgstr "Nur CSV Dateien, maximal 10 MB"
 
-#: lib/mv_web/live/global_settings_live.ex
-#, elixir-autogen, elixir-format
-msgid "Custom fields must be created in Mila before importing CSV files with custom field columns"
-msgstr "Individuelle Datenfelder müssen zuerst in Mila angelegt werden bevor das Importieren von diesen Feldern mit CSV Dateien mölich ist."
-
 #: lib/mv_web/live/global_settings_live.ex
 #, elixir-autogen, elixir-format
 msgid "Download CSV templates:"
@@ -2120,11 +2115,6 @@ msgstr "Erfolgreich eingefügt: %{count} Mitglied(er)"
 msgid "Summary"
 msgstr "Zusammenfassung"
 
-#: lib/mv_web/live/global_settings_live.ex
-#, elixir-autogen, elixir-format
-msgid "Use the custom field name as the CSV column header (same normalization as member fields applies)"
-msgstr "Verwenden Sie den Namen des benutzerdefinierten Feldes als CSV-Spaltenüberschrift (gleiche Normalisierung wie bei Mitgliedsfeldern)"
-
 #: lib/mv_web/live/global_settings_live.ex
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Warnings"
@@ -2272,3 +2262,48 @@ msgstr "Nicht berechtigt."
 #, elixir-autogen, elixir-format
 msgid "Could not load data fields. Please check your permissions."
 msgstr "Datenfelder konnten nicht geladen werden. Bitte überprüfen Sie Ihre Berechtigungen."
+
+#: lib/mv/membership/import/member_csv.ex
+#, elixir-autogen, elixir-format
+msgid "(ISO-8601 format: YYYY-MM-DD)"
+msgstr "(ISO-8601 Format: JJJJ-MM-TT)"
+
+#: lib/mv/membership/import/member_csv.ex
+#, elixir-autogen, elixir-format
+msgid "(true/false/1/0/yes/no/ja/nein)"
+msgstr "(true/false/1/0/yes/no/ja/nein)"
+
+#: lib/mv/membership/import/member_csv.ex
+#, elixir-autogen, elixir-format
+msgid "custom_field: %{name} – expected %{type} %{details}, got: %{value}"
+msgstr "Datenfeld: %{name} – erwartet %{type} %{details}, erhalten: %{value}"
+
+#: lib/mv/membership/import/member_csv.ex
+#, elixir-autogen, elixir-format
+msgid "custom_field: %{name} – expected %{type}, got: %{value}"
+msgstr "Datenfeld: %{name} – erwartet %{type}, erhalten: %{value}"
+
+#: lib/mv_web/live/global_settings_live.ex
+#, elixir-autogen, elixir-format
+msgid "Manage Memberdata"
+msgstr "Mitgliederdaten verwalten"
+
+#: lib/mv_web/live/global_settings_live.ex
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Use the data field name as the CSV column header in your file. Data fields must exist in Mila before importing, so they must be listed in the list of memberdate (like e-mail or first name). Unknown data field columns will be ignored with a warning."
+msgstr "Verwende die Namen der Datenfelder als Spaltennamen in der CSV Datei. Datenfelder müssen in Mila bereits angelegt sein, damit sie importiert werden können. Sie müssen in der Liste der Mitgliederdaten als Datenfeld enthalten sein (z.B. E-Mail). Spalten mit unbekannten Spaltenüberschriften werden mit einer Warnung ignoriert."
+
+#~ #: lib/mv_web/live/global_settings_live.ex
+#~ #, elixir-autogen, elixir-format, fuzzy
+#~ msgid "Custom Fields in CSV Import"
+#~ msgstr "Benutzerdefinierte Felder"
+
+#~ #: lib/mv_web/live/global_settings_live.ex
+#~ #, elixir-autogen, elixir-format, fuzzy
+#~ msgid "Individual data fields must be created in Mila before importing. Use the field name as the CSV column header. Unknown custom field columns will be ignored with a warning."
+#~ msgstr "Individuelle Datenfelder müssen in Mila erstellt werden, bevor sie importiert werden können. Verwenden Sie den Namen des Datenfeldes als CSV-Spaltenüberschrift. Unbekannte Spaltenüberschriften werden mit einer Warnung ignoriert."
+
+#~ #: lib/mv_web/live/global_settings_live.ex
+#~ #, elixir-autogen, elixir-format
+#~ msgid "Manage Custom Fields"
+#~ msgstr "Benutzerdefinierte Felder verwalten"
diff --git a/priv/gettext/default.pot b/priv/gettext/default.pot
index 98f9d7b..c474aef 100644
--- a/priv/gettext/default.pot
+++ b/priv/gettext/default.pot
@@ -1986,11 +1986,6 @@ msgstr ""
 msgid "CSV files only, maximum 10 MB"
 msgstr ""
 
-#: lib/mv_web/live/global_settings_live.ex
-#, elixir-autogen, elixir-format
-msgid "Custom fields must be created in Mila before importing CSV files with custom field columns"
-msgstr ""
-
 #: lib/mv_web/live/global_settings_live.ex
 #, elixir-autogen, elixir-format
 msgid "Download CSV templates:"
@@ -2121,11 +2116,6 @@ msgstr ""
 msgid "Summary"
 msgstr ""
 
-#: lib/mv_web/live/global_settings_live.ex
-#, elixir-autogen, elixir-format
-msgid "Use the custom field name as the CSV column header (same normalization as member fields applies)"
-msgstr ""
-
 #: lib/mv_web/live/global_settings_live.ex
 #, elixir-autogen, elixir-format
 msgid "Warnings"
@@ -2273,3 +2263,33 @@ msgstr ""
 #, elixir-autogen, elixir-format
 msgid "Could not load data fields. Please check your permissions."
 msgstr ""
+
+#: lib/mv/membership/import/member_csv.ex
+#, elixir-autogen, elixir-format
+msgid "(ISO-8601 format: YYYY-MM-DD)"
+msgstr ""
+
+#: lib/mv/membership/import/member_csv.ex
+#, elixir-autogen, elixir-format
+msgid "(true/false/1/0/yes/no/ja/nein)"
+msgstr ""
+
+#: lib/mv/membership/import/member_csv.ex
+#, elixir-autogen, elixir-format
+msgid "custom_field: %{name} – expected %{type} %{details}, got: %{value}"
+msgstr ""
+
+#: lib/mv/membership/import/member_csv.ex
+#, elixir-autogen, elixir-format
+msgid "custom_field: %{name} – expected %{type}, got: %{value}"
+msgstr ""
+
+#: lib/mv_web/live/global_settings_live.ex
+#, elixir-autogen, elixir-format
+msgid "Manage Memberdata"
+msgstr ""
+
+#: lib/mv_web/live/global_settings_live.ex
+#, elixir-autogen, elixir-format
+msgid "Use the data field name as the CSV column header in your file. Data fields must exist in Mila before importing, so they must be listed in the list of memberdate (like e-mail or first name). Unknown data field columns will be ignored with a warning."
+msgstr ""
diff --git a/priv/gettext/en/LC_MESSAGES/default.po b/priv/gettext/en/LC_MESSAGES/default.po
index 95a3c3a..f9fd014 100644
--- a/priv/gettext/en/LC_MESSAGES/default.po
+++ b/priv/gettext/en/LC_MESSAGES/default.po
@@ -1986,11 +1986,6 @@ msgstr ""
 msgid "CSV files only, maximum 10 MB"
 msgstr ""
 
-#: lib/mv_web/live/global_settings_live.ex
-#, elixir-autogen, elixir-format
-msgid "Custom fields must be created in Mila before importing CSV files with custom field columns"
-msgstr ""
-
 #: lib/mv_web/live/global_settings_live.ex
 #, elixir-autogen, elixir-format
 msgid "Download CSV templates:"
@@ -2121,11 +2116,6 @@ msgstr ""
 msgid "Summary"
 msgstr ""
 
-#: lib/mv_web/live/global_settings_live.ex
-#, elixir-autogen, elixir-format
-msgid "Use the custom field name as the CSV column header (same normalization as member fields applies)"
-msgstr ""
-
 #: lib/mv_web/live/global_settings_live.ex
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Warnings"
@@ -2273,3 +2263,48 @@ msgstr ""
 #, elixir-autogen, elixir-format
 msgid "Could not load data fields. Please check your permissions."
 msgstr ""
+
+#: lib/mv/membership/import/member_csv.ex
+#, elixir-autogen, elixir-format
+msgid "(ISO-8601 format: YYYY-MM-DD)"
+msgstr ""
+
+#: lib/mv/membership/import/member_csv.ex
+#, elixir-autogen, elixir-format
+msgid "(true/false/1/0/yes/no/ja/nein)"
+msgstr ""
+
+#: lib/mv/membership/import/member_csv.ex
+#, elixir-autogen, elixir-format
+msgid "custom_field: %{name} – expected %{type} %{details}, got: %{value}"
+msgstr ""
+
+#: lib/mv/membership/import/member_csv.ex
+#, elixir-autogen, elixir-format
+msgid "custom_field: %{name} – expected %{type}, got: %{value}"
+msgstr ""
+
+#: lib/mv_web/live/global_settings_live.ex
+#, elixir-autogen, elixir-format
+msgid "Manage Memberdata"
+msgstr ""
+
+#: lib/mv_web/live/global_settings_live.ex
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Use the data field name as the CSV column header in your file. Data fields must exist in Mila before importing, so they must be listed in the list of memberdate (like e-mail or first name). Unknown data field columns will be ignored with a warning."
+msgstr ""
+
+#~ #: lib/mv_web/live/global_settings_live.ex
+#~ #, elixir-autogen, elixir-format, fuzzy
+#~ msgid "Custom Fields in CSV Import"
+#~ msgstr ""
+
+#~ #: lib/mv_web/live/global_settings_live.ex
+#~ #, elixir-autogen, elixir-format, fuzzy
+#~ msgid "Individual data fields must be created in Mila before importing. Use the field name as the CSV column header. Unknown custom field columns will be ignored with a warning."
+#~ msgstr ""
+
+#~ #: lib/mv_web/live/global_settings_live.ex
+#~ #, elixir-autogen, elixir-format
+#~ msgid "Manage Custom Fields"
+#~ msgstr ""