diff --git a/CHANGELOG b/CHANGELOG
index 188b00ed3..8e28b5e64 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -8,6 +8,12 @@ Version 1.6.1 (unreleased)
 ==========================
 [https://github.com/OpenSlides/OpenSlides/issues?milestone=16]
 
+Participants:
+- Fixed participant csv import for group id:
+  * Allowed to add multiple groups in csv group id field, e.g. "3,4".
+  * Fixed bug that group ids > 9 can not be imported.
+  * Updated error message if group id does not exists.
+
 Other:
 - Fixed CKEditor stuff (added insertpre plugin and removed unused code)
 
diff --git a/extras/csv-examples/participants-demo_de.csv b/extras/csv-examples/participants-demo_de.csv
index 6b05c0562..d50b9fdc1 100644
--- a/extras/csv-examples/participants-demo_de.csv
+++ b/extras/csv-examples/participants-demo_de.csv
@@ -13,7 +13,7 @@ Teilnehmer/innen-Namen aus http://de.wikipedia.org/wiki/Otto_Normalverbraucher";
 ;"Tädi";"Maali";"female";;3;"Estland";;;;1
 ;"Maija";"Maikäläinen";"female";;3;"Finnland";;;;1
 ;"Jean";"Dupont";"male";;3;"Frankreich";;;;1
-;"Paul";"Martin";"female";;4;"Frankreich";"Versammlungsleitung";;;1
+;"Paul";"Martin";"male";;"3,4";"Frankreich";"Versammlungsleitung";;;1
 ;"Fred";"Bloggs";"male";;3;"Großbritanien";;;;0
 ;"John";"Smith";"male";;4;"Großbritanien";"Versammlungsleitung";;;1
 ;"Ashok";"Kumar";"male";;3;"Indien";;;;1
diff --git a/openslides/participant/csv_import.py b/openslides/participant/csv_import.py
index 55c16c2c4..73bf403c0 100644
--- a/openslides/participant/csv_import.py
+++ b/openslides/participant/csv_import.py
@@ -54,15 +54,13 @@ def import_users(csvfile):
                         user.is_active = False
                     user.default_password = gen_password()
                     user.save()
-                    for groupid in groups:
+                    for groupid in groups.split(','):
                         try:
-                            if groupid != ",":
+                            if groupid and int(groupid):
                                 Group.objects.get(pk=groupid).user_set.add(user)
-                        except ValueError:
-                            error_messages.append(_('Ignoring malformed group id in line %d.') % (line_no + 1))
-                            continue
-                        except Group.DoesNotExist:
-                            error_messages.append(_('Group id %(id)s does not exists (line %(line)d).') % {'id': groupid, 'line': line_no + 1})
+                        except (Group.DoesNotExist, ValueError):
+                            error_messages.append(_('Ignoring group id "%(id)s" in line %(line)d which does not exist.') %
+                                                  {'id': groupid, 'line': line_no + 1})
                             continue
                     user.reset_password()
                     count_success += 1