diff --git a/src/main/java/com/indexzero/finals/controller/EmployeeController.java b/src/main/java/com/indexzero/finals/controller/EmployeeController.java
index ea1ffde..d132af1 100644
--- a/src/main/java/com/indexzero/finals/controller/EmployeeController.java
+++ b/src/main/java/com/indexzero/finals/controller/EmployeeController.java
@@ -2,6 +2,9 @@ package com.indexzero.finals.controller;
 
 import com.indexzero.finals.dto.EmployeeDTO;
 import com.indexzero.finals.service.EmployeeService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
@@ -21,37 +24,83 @@ public class EmployeeController {
     EmployeeService employeeService;
 
     @PostMapping("/login")
+    @Operation(description = "User Login", summary = "User login")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "Login Successful"),
+            @ApiResponse(responseCode = "401", description = "Unauthorized"),
+    })
     public ResponseEntity<Object> login() {
         return new ResponseEntity(HttpStatus.OK);
     }
 
     @PostMapping("/profile")
+    @Operation(description = "Get user's profile. Username is taken from Authentication.", summary = "Get user's profile")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "Request Successful"),
+            @ApiResponse(responseCode = "401", description = "Unauthorized"),
+    })
     public ResponseEntity<EmployeeDTO> getInfo() {
         return employeeService.getUserInfo(SecurityContextHolder.getContext().getAuthentication());
     }
 
     @PatchMapping("/open")
+    @Operation(description = "Open the door. Code is taken from the code URL param.", summary = "Open the door")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "Opening Successful"),
+            @ApiResponse(responseCode = "401", description = "Unauthorized / Wrong code"),
+            @ApiResponse(responseCode = "400", description = "Bad Request"),
+
+    })
     public ResponseEntity<Object> Open(@RequestParam Long code) {
         return employeeService.openTheDoor(code, SecurityContextHolder.getContext().getAuthentication());
     }
 
     @DeleteMapping("/{login}/delete")
+    @Operation(description = "Delete a user by login. (ADMIN only)", summary = "Delete a user by login")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "Deletion Successful"),
+            @ApiResponse(responseCode = "401", description = "Unauthorized"),
+            @ApiResponse(responseCode = "403", description = "Forbidden"),
+            @ApiResponse(responseCode = "404", description = "User not found"),
+            @ApiResponse(responseCode = "409", description = "User you're trying to delete has ADMIN authority"),
+    })
     public ResponseEntity<HttpStatusCode> delete(@PathVariable String login) {
         return employeeService.deleteEmployee(login);
     }
 
     @PatchMapping("/{login}/{state}")
+    @Operation(description = "Enable/Disable user's ability to use QR code entrance. (ADMIN only) States: active / blocked", summary = "Enable/Disable QR")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "Modification Successful"),
+            @ApiResponse(responseCode = "401", description = "Unauthorized"),
+            @ApiResponse(responseCode = "403", description = "Forbidden"),
+            @ApiResponse(responseCode = "404", description = "User not found"),
+            @ApiResponse(responseCode = "400", description = "State doesn't exist"),
+    })
     public ResponseEntity<HttpStatusCode> changeState(@PathVariable String login, @PathVariable String state) {
         return employeeService.changeState(login, state);
     }
 
     @GetMapping("/all")
+    @Operation(description = "Get all users with pagination. (ADMIN Only)", summary = "Get all users")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "Request Successful"),
+            @ApiResponse(responseCode = "401", description = "Unauthorized"),
+            @ApiResponse(responseCode = "403", description = "Forbidden"),
+    })
     public ResponseEntity<Page<EmployeeDTO>> getAll(@RequestParam(defaultValue = "0") int page, @RequestParam(defaultValue = "10") int size) {
         Pageable pageable = PageRequest.of(page, size);
         return employeeService.getAllEmployees(pageable);
     }
 
     @GetMapping("/{login}")
+    @Operation(description = "Get user's profile by login (ADMIN only)", summary = "Get user's profile by login")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "Modification Successful"),
+            @ApiResponse(responseCode = "401", description = "Unauthorized"),
+            @ApiResponse(responseCode = "403", description = "Forbidden"),
+            @ApiResponse(responseCode = "404", description = "User not found"),
+    })
     public ResponseEntity<EmployeeDTO> getEmployeeByLogin(@PathVariable String login) {
         return employeeService.getEmployeeByLogin(login);
     }
diff --git a/src/main/java/com/indexzero/finals/controller/EntranceController.java b/src/main/java/com/indexzero/finals/controller/EntranceController.java
index 94e715f..67c6799 100644
--- a/src/main/java/com/indexzero/finals/controller/EntranceController.java
+++ b/src/main/java/com/indexzero/finals/controller/EntranceController.java
@@ -41,12 +41,12 @@ public class EntranceController {
     }
 
     @GetMapping("/all")
+    @Operation(description = "Get all entrances of all users with pagination (ADMIN only)", summary = "Get all entrances")
     @ApiResponses(value = {
             @ApiResponse(responseCode = "200", description = "Request Successful."),
             @ApiResponse(responseCode = "401", description = "Unauthorized"),
             @ApiResponse(responseCode = "403", description = "Forbidden"),
     })
-    @Operation(description = "Get all entrances of all users (ADMIN only)", summary = "Get all entrances")
     public ResponseEntity<Page<EntranceDTO>> getAllEntrances(@RequestParam(defaultValue = "0") int page, @RequestParam(defaultValue = "10") int size) {
         Pageable pageable = PageRequest.of(page, size);
         return entranceService.getAllEntrances(pageable);
diff --git a/src/main/java/com/indexzero/finals/service/impl/EmployeeServiceImpl.java b/src/main/java/com/indexzero/finals/service/impl/EmployeeServiceImpl.java
index d75ac3e..e499739 100644
--- a/src/main/java/com/indexzero/finals/service/impl/EmployeeServiceImpl.java
+++ b/src/main/java/com/indexzero/finals/service/impl/EmployeeServiceImpl.java
@@ -68,7 +68,7 @@ public class EmployeeServiceImpl implements EmployeeService {
         Employee e = employeeRepository.findByLogin(login);
         if(e != null) {
             if (Objects.equals(e.getAuthorities().iterator().next().getAuthority(), "ADMIN")) {
-                return new ResponseEntity<>(HttpStatus.UNAUTHORIZED);
+                return new ResponseEntity<>(HttpStatus.CONFLICT);
             }
             else {
                 employeeRepository.delete(e);