diff --git a/ApiDto/Responses/Schedule/DisciplineScheduleResponse.cs b/ApiDto/Responses/Schedule/DisciplineScheduleResponse.cs
index bf4a337..ffc5578 100644
--- a/ApiDto/Responses/Schedule/DisciplineScheduleResponse.cs
+++ b/ApiDto/Responses/Schedule/DisciplineScheduleResponse.cs
@@ -31,7 +31,7 @@ public class DisciplineScheduleInfo
     /// Gets or sets the type of occupation for the schedule entry.
     /// </summary>
     [Required]
-    public required string TypeOfOccupation { get; set; }
+    public required IEnumerable<string> TypeOfOccupation { get; set; }
 
     /// <summary>
     /// Gets or sets the names of the group for the schedule entry.
diff --git a/ApiDto/Responses/Schedule/GroupScheduleResponse.cs b/ApiDto/Responses/Schedule/GroupScheduleResponse.cs
index 7fa13d1..c85778c 100644
--- a/ApiDto/Responses/Schedule/GroupScheduleResponse.cs
+++ b/ApiDto/Responses/Schedule/GroupScheduleResponse.cs
@@ -43,7 +43,7 @@ public class GroupScheduleInfo
     /// Gets or sets the type of occupation for the schedule entry.
     /// </summary>
     [Required]
-    public required string TypeOfOccupation { get; set; }
+    public required IEnumerable<string> TypeOfOccupations { get; set; }
 
     /// <summary>
     /// Gets or sets the names of the lecture halls for the schedule entry.
diff --git a/ApiDto/Responses/Schedule/LectureHallScheduleResponse.cs b/ApiDto/Responses/Schedule/LectureHallScheduleResponse.cs
index 369a8f5..294876f 100644
--- a/ApiDto/Responses/Schedule/LectureHallScheduleResponse.cs
+++ b/ApiDto/Responses/Schedule/LectureHallScheduleResponse.cs
@@ -43,7 +43,7 @@ public class LectureHallScheduleInfo
     /// Gets or sets the type of occupation for the schedule entry.
     /// </summary>
     [Required]
-    public required string TypeOfOccupation { get; set; }
+    public required IEnumerable<string> TypeOfOccupations { get; set; }
 
     /// <summary>
     /// Gets or sets the names of the group for the schedule entry.
diff --git a/ApiDto/Responses/Schedule/ProfessorScheduleResponse.cs b/ApiDto/Responses/Schedule/ProfessorScheduleResponse.cs
index 3a53ebf..07a7471 100644
--- a/ApiDto/Responses/Schedule/ProfessorScheduleResponse.cs
+++ b/ApiDto/Responses/Schedule/ProfessorScheduleResponse.cs
@@ -43,7 +43,7 @@ public class ProfessorScheduleInfo
     /// Gets or sets the type of occupation for the schedule entry.
     /// </summary>
     [Required]
-    public required string TypeOfOccupation { get; set; }
+    public required IEnumerable<string> TypeOfOccupations { get; set; }
 
     /// <summary>
     /// Gets or sets the names of the group for the schedule entry.
diff --git a/ApiDto/Responses/Schedule/ScheduleResponse.cs b/ApiDto/Responses/Schedule/ScheduleResponse.cs
index 2a03178..8698ed7 100644
--- a/ApiDto/Responses/Schedule/ScheduleResponse.cs
+++ b/ApiDto/Responses/Schedule/ScheduleResponse.cs
@@ -43,7 +43,7 @@ public class ScheduleResponse
     /// Gets or sets the type of occupation for the schedule entry.
     /// </summary>
     [Required]
-    public required string TypeOfOccupation { get; set; }
+    public required IEnumerable<string> TypeOfOccupations { get; set; }
 
     /// <summary>
     /// Gets or sets the name of the group for the schedule entry.
diff --git a/Endpoint/Controllers/V1/ScheduleController.cs b/Endpoint/Controllers/V1/ScheduleController.cs
index 43b47ad..3e9a5ed 100644
--- a/Endpoint/Controllers/V1/ScheduleController.cs
+++ b/Endpoint/Controllers/V1/ScheduleController.cs
@@ -27,10 +27,10 @@ public class ScheduleController(IMediator mediator) : BaseControllerV1
     public async Task<ActionResult<List<ScheduleResponse>>> Get([FromBody] ScheduleRequest request)
 
     {
-        if ((request.Groups == null || !request.Groups.Any()) &&
-            (request.Disciplines == null || !request.Disciplines.Any()) &&
-            (request.Professors == null || !request.Professors.Any()) &&
-            (request.LectureHalls == null || !request.LectureHalls.Any()))
+        if ((request.Groups == null || request.Groups.Length == 0) &&
+            (request.Disciplines == null || request.Disciplines.Length == 0) &&
+            (request.Professors == null || request.Professors.Length == 0) &&
+            (request.LectureHalls == null || request.LectureHalls.Length == 0))
         {
             return BadRequest(new ErrorResponse()
             {
@@ -60,7 +60,7 @@ public class ScheduleController(IMediator mediator) : BaseControllerV1
             IsEven = s.IsEven,
             Discipline = s.Discipline,
             DisciplineId = s.DisciplineId,
-            TypeOfOccupation = s.TypeOfOccupation,
+            TypeOfOccupations = s.TypeOfOccupations,
             Group = s.Group,
             GroupId = s.GroupId,
             LectureHalls = s.LectureHalls,
@@ -117,7 +117,7 @@ public class ScheduleController(IMediator mediator) : BaseControllerV1
                 IsEven = g.IsEven,
                 Discipline = g.Discipline,
                 DisciplineId = g.DisciplineId,
-                TypeOfOccupation = g.TypeOfOccupation,
+                TypeOfOccupations = g.TypeOfOccupations,
                 LectureHalls = g.LectureHalls,
                 LectureHallsId = g.LectureHallsId,
                 Professors = g.Professors,
@@ -176,7 +176,7 @@ public class ScheduleController(IMediator mediator) : BaseControllerV1
                 IsEven = p.IsEven,
                 Discipline = p.Discipline,
                 DisciplineId = p.DisciplineId,
-                TypeOfOccupation = p.TypeOfOccupation,
+                TypeOfOccupations = p.TypeOfOccupations,
                 Group = p.Group,
                 GroupId = p.GroupId,
                 LectureHalls = p.LectureHalls,
@@ -235,7 +235,7 @@ public class ScheduleController(IMediator mediator) : BaseControllerV1
                 IsEven = l.IsEven,
                 Discipline = l.Discipline,
                 DisciplineId = l.DisciplineId,
-                TypeOfOccupation = l.TypeOfOccupation,
+                TypeOfOccupations = l.TypeOfOccupations,
                 Group = l.Group,
                 GroupId = l.GroupId,
                 Professors = l.Professors,
@@ -273,7 +273,7 @@ public class ScheduleController(IMediator mediator) : BaseControllerV1
             IsEven = isEven,
             DisciplineIds = [id],
             GroupIds = groups,
-            LectureHallIds = [id],
+            LectureHallIds = lectureHalls,
             ProfessorIds = professors
         })).Schedules;
 
@@ -288,7 +288,7 @@ public class ScheduleController(IMediator mediator) : BaseControllerV1
                 DayOfWeek = d.DayOfWeek,
                 PairNumber = d.PairNumber,
                 IsEven = d.IsEven,
-                TypeOfOccupation = d.TypeOfOccupation,
+                TypeOfOccupation = d.TypeOfOccupations,
                 Group = d.Group,
                 GroupId = d.GroupId,
                 LectureHalls = d.LectureHalls,