diff --git a/backend/src/main/java/com/edufocus/edufocus/lecture/entity/Lecture.java b/backend/src/main/java/com/edufocus/edufocus/lecture/entity/Lecture.java
index c006240..5ae3972 100644
--- a/backend/src/main/java/com/edufocus/edufocus/lecture/entity/Lecture.java
+++ b/backend/src/main/java/com/edufocus/edufocus/lecture/entity/Lecture.java
@@ -35,6 +35,8 @@ public class Lecture {
     @Lob
     private String plan;
 
+    @Column
+    private boolean online;
 
 
 }
diff --git a/backend/src/main/java/com/edufocus/edufocus/registration/controller/RegistrationController.java b/backend/src/main/java/com/edufocus/edufocus/registration/controller/RegistrationController.java
new file mode 100644
index 0000000..fc6e67d
--- /dev/null
+++ b/backend/src/main/java/com/edufocus/edufocus/registration/controller/RegistrationController.java
@@ -0,0 +1,42 @@
+package com.edufocus.edufocus.registration.controller;
+
+import com.edufocus.edufocus.registration.entity.Registration;
+import com.edufocus.edufocus.registration.service.RegistrationService;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/registration")
+@Slf4j
+public class RegistrationController {
+
+    private final RegistrationService registrationServiceImpl;
+
+    public RegistrationController(RegistrationService registrationServiceImpl) {
+        this.registrationServiceImpl = registrationServiceImpl;
+    }
+
+    @PostMapping
+    public ResponseEntity<?> register(@RequestBody Registration registration) {
+        registrationServiceImpl.createRegistration(registration);
+
+        return new ResponseEntity<>(HttpStatus.OK);
+    }
+
+    @PatchMapping("/registrationId/{registrationId}")
+    public ResponseEntity<?> acceptRigistration(@PathVariable long registrationId) {
+        registrationServiceImpl.acceptRegistration(registrationId);
+
+        return new ResponseEntity<>(HttpStatus.OK);
+    }
+
+    @DeleteMapping("/registrationId/{registrationId}")
+    public ResponseEntity<?> deleteRigistration(@PathVariable long registrationId) {
+        registrationServiceImpl.deleteRegistration(registrationId);
+
+        return new ResponseEntity<>(HttpStatus.OK);
+    }
+
+}
diff --git a/backend/src/main/java/com/edufocus/edufocus/registration/entity/Registration.java b/backend/src/main/java/com/edufocus/edufocus/registration/entity/Registration.java
new file mode 100644
index 0000000..7e1cce6
--- /dev/null
+++ b/backend/src/main/java/com/edufocus/edufocus/registration/entity/Registration.java
@@ -0,0 +1,28 @@
+package com.edufocus.edufocus.registration.entity;
+
+import com.edufocus.edufocus.lecture.entity.Lecture;
+import com.edufocus.edufocus.user.model.entity.User;
+import jakarta.persistence.*;
+import lombok.Getter;
+import lombok.Setter;
+
+@Entity
+@Getter
+@Setter
+public class Registration {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private long id;
+
+    @ManyToOne
+    @JoinColumn(name = "user_id")
+    private User user;
+
+    @ManyToOne
+    @JoinColumn(name = "lecture_id")
+    private Lecture lecture;
+
+    @Enumerated(EnumType.STRING)
+    private RegistrationStatus status ;
+}
diff --git a/backend/src/main/java/com/edufocus/edufocus/registration/entity/RegistrationStatus.java b/backend/src/main/java/com/edufocus/edufocus/registration/entity/RegistrationStatus.java
new file mode 100644
index 0000000..5540eed
--- /dev/null
+++ b/backend/src/main/java/com/edufocus/edufocus/registration/entity/RegistrationStatus.java
@@ -0,0 +1,5 @@
+package com.edufocus.edufocus.registration.entity;
+
+public enum RegistrationStatus {
+    WAITING, ACCEPTED
+}
diff --git a/backend/src/main/java/com/edufocus/edufocus/registration/repository/RegistrationRepository.java b/backend/src/main/java/com/edufocus/edufocus/registration/repository/RegistrationRepository.java
new file mode 100644
index 0000000..f8dc7db
--- /dev/null
+++ b/backend/src/main/java/com/edufocus/edufocus/registration/repository/RegistrationRepository.java
@@ -0,0 +1,11 @@
+package com.edufocus.edufocus.registration.repository;
+
+import com.edufocus.edufocus.registration.entity.Registration;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.repository.query.Param;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface RegistrationRepository extends JpaRepository<Registration, Long> {
+
+}
diff --git a/backend/src/main/java/com/edufocus/edufocus/registration/service/RegistrationService.java b/backend/src/main/java/com/edufocus/edufocus/registration/service/RegistrationService.java
new file mode 100644
index 0000000..fcaac94
--- /dev/null
+++ b/backend/src/main/java/com/edufocus/edufocus/registration/service/RegistrationService.java
@@ -0,0 +1,17 @@
+package com.edufocus.edufocus.registration.service;
+
+import com.edufocus.edufocus.registration.entity.Registration;
+import org.springframework.stereotype.Service;
+
+@Service
+public interface RegistrationService {
+
+    void createRegistration(Registration registration);
+
+    void acceptRegistration(long RegistrationId);
+
+    void deleteRegistration(long registrationId);
+
+    boolean isAcceptedRegistration(long registrationId);
+
+}
diff --git a/backend/src/main/java/com/edufocus/edufocus/registration/service/RegistrationServiceImpl.java b/backend/src/main/java/com/edufocus/edufocus/registration/service/RegistrationServiceImpl.java
new file mode 100644
index 0000000..6eadce6
--- /dev/null
+++ b/backend/src/main/java/com/edufocus/edufocus/registration/service/RegistrationServiceImpl.java
@@ -0,0 +1,46 @@
+package com.edufocus.edufocus.registration.service;
+
+import com.edufocus.edufocus.registration.entity.Registration;
+import com.edufocus.edufocus.registration.entity.RegistrationStatus;
+import com.edufocus.edufocus.registration.repository.RegistrationRepository;
+import jakarta.transaction.Transactional;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.Optional;
+
+@Service
+@Transactional
+@RequiredArgsConstructor
+public class RegistrationServiceImpl implements RegistrationService {
+
+    private final RegistrationRepository registrationRepository;
+
+    @Override
+    public void createRegistration(Registration registration) {
+        registrationRepository.save(registration);
+    }
+
+    @Override
+    public void acceptRegistration(long registrationId) {
+        Optional<Registration> registration = registrationRepository.findById(registrationId);
+
+        if (registration.isPresent()) {
+            Registration reg = registration.get();
+            reg.setStatus(RegistrationStatus.valueOf("ACCEPTED"));
+            registrationRepository.save(reg);
+        }
+    }
+
+    @Override
+    public void deleteRegistration(long registrationId) {
+        registrationRepository.deleteById(registrationId);
+    }
+
+    @Override
+    public boolean isAcceptedRegistration(long registrationId) {
+        Optional<Registration> registration = registrationRepository.findById(registrationId);
+
+        return registration.isPresent() && registration.get().getStatus().equals("ACCEPTED");
+    }
+}