diff --git a/BackEnd/src/main/java/studycave/studycaverestservice/usos/AuthorizationService.java b/BackEnd/src/main/java/studycave/studycaverestservice/usos/AuthorizationService.java
index 21907be..e32e919 100644
--- a/BackEnd/src/main/java/studycave/studycaverestservice/usos/AuthorizationService.java
+++ b/BackEnd/src/main/java/studycave/studycaverestservice/usos/AuthorizationService.java
@@ -208,10 +208,22 @@ public class AuthorizationService {
             JSONArray participants = course.getJSONArray("user_groups").getJSONObject(0).getJSONArray("participants");
             for (int j = 0 ; j < participants.length() ; j++){
                 String id = participants.getJSONObject(j).getString("id");
-                Optional<User> user = userRepository.findByUsosUserUsosId(id);
-                if (user.isPresent())
-                    if (!studyGroupMemberRepository.findByUserUsosUserUsosIdAndGroupUsosGroupId(id, groupId).isPresent())
-                        studyGroup.getMembers().add(new StudyGroupMember(studyGroup, user.get(), false));
+                Optional<User> userCheck = userRepository.findByUsosUserUsosId(id);
+                User user = null;
+                if (userCheck.isPresent())
+                    user = userCheck.get();
+                else {
+                    user = new User();
+                    String generatedPassword = PasswordGenerator.generatePassword(16, ALPHA_CAPS + ALPHA + NUMERIC);
+                    UsosUser usosUser = new UsosUser(id, bCryptPasswordEncoder.encode(generatedPassword));
+                    user.setUsosUser(usosUser);
+                    user.setName(participants.getJSONObject(j).getString("first_name"));
+                    user.setSurname(participants.getJSONObject(j).getString("last_name"));
+                    user.setUsername(id);
+                    user = userRepository.save(user);
+                }
+                if (!studyGroupMemberRepository.findByUserUsosUserUsosIdAndGroupUsosGroupId(id, groupId).isPresent())
+                    studyGroup.getMembers().add(new StudyGroupMember(studyGroup, user, false));
             }
             groupRepository.save(studyGroup);
         }