diff --git a/intervention/forms/modalForms.py b/intervention/forms/modalForms.py
index 36667f89..7adc6864 100644
--- a/intervention/forms/modalForms.py
+++ b/intervention/forms/modalForms.py
@@ -36,7 +36,7 @@ class ShareModalForm(BaseModalForm):
     user_select = forms.ModelMultipleChoiceField(
         label=_("Add user to share with"),
         label_suffix="",
-        help_text=_("Multiple selection possible - You can only select users which do not already have access"),
+        help_text=_("Multiple selection possible - You can only select users which do not already have access. Enter the full username."),
         required=False,
         queryset=User.objects.all(),
         widget=autocomplete.ModelSelect2Multiple(
diff --git a/konova/autocompletes.py b/konova/autocompletes.py
index f0fb0fe0..58844f3e 100644
--- a/konova/autocompletes.py
+++ b/konova/autocompletes.py
@@ -79,7 +79,7 @@ class ShareUserAutocomplete(Select2QuerySetView):
         )
         if self.q:
             qs = qs.filter(
-                username__istartswith=self.q
+                username=self.q
             )
         return qs
 
diff --git a/konova/settings.py b/konova/settings.py
index 1355fbae..b6306e45 100644
--- a/konova/settings.py
+++ b/konova/settings.py
@@ -51,8 +51,8 @@ PAGE_DEFAULT = 1
 # SSO settings
 SSO_SERVER_BASE = "http://127.0.0.1:8000/"
 SSO_SERVER = f"{SSO_SERVER_BASE}sso/"
-SSO_PRIVATE_KEY = "CHANGE_ME"
-SSO_PUBLIC_KEY = "CHANGE_ME"
+SSO_PRIVATE_KEY = "U7OjCbElNDchUvh9WVzfOfC4juJQC9HGZI9tSdjmeFe0MDTw7BCNBv4MigJ79dlJ"
+SSO_PUBLIC_KEY = "PnxIZFewXVoL0FG2wMr3DCGgLCHOwR6JE9GYJCZHazVjlDgOZFl3qiB4dWsAZRF5"
 
 # MAPS
 DEFAULT_LAT = 50.00
diff --git a/locale/de/LC_MESSAGES/django.mo b/locale/de/LC_MESSAGES/django.mo
index bea21be2..94f1f426 100644
Binary files a/locale/de/LC_MESSAGES/django.mo and b/locale/de/LC_MESSAGES/django.mo differ
diff --git a/locale/de/LC_MESSAGES/django.po b/locale/de/LC_MESSAGES/django.po
index b194437a..fdf4fc98 100644
--- a/locale/de/LC_MESSAGES/django.po
+++ b/locale/de/LC_MESSAGES/django.po
@@ -1289,10 +1289,10 @@ msgstr "Nutzer direkt hinzufügen"
 #: intervention/forms/modalForms.py:39
 msgid ""
 "Multiple selection possible - You can only select users which do not already "
-"have access"
+"have access. Enter the full username."
 msgstr ""
 "Mehrfachauswahl möglich - Sie können nur Nutzer wählen, für die der Eintrag "
-"noch nicht freigegeben wurde"
+"noch nicht freigegeben wurde. Geben Sie den ganzen Nutzernamen an."
 
 #: intervention/forms/modalForms.py:55
 msgid "Remove check to remove access for this user"