diff --git a/CompanyManagment.Application/CustomizeWorkshopSettingsApplication.cs b/CompanyManagment.Application/CustomizeWorkshopSettingsApplication.cs
index ed28d05e..55f2c182 100644
--- a/CompanyManagment.Application/CustomizeWorkshopSettingsApplication.cs
+++ b/CompanyManagment.Application/CustomizeWorkshopSettingsApplication.cs
@@ -342,7 +342,7 @@ public class CustomizeWorkshopSettingsApplication(ICustomizeWorkshopSettingsRepo
 
 		double salary = command.Salary.MoneyToDouble();
 
-		var weeklyOffDays = command.OffDayOfWeeks.Select(x => new WeeklyOffDay(x)).ToList();
+		var weeklyOffDays = command.OffDayOfWeeks?.Select(x => new WeeklyOffDay(x)).ToList()??[];
 
 		var entity = new CustomizeWorkshopGroupSettings(command.Name, salary, command.CustomizeWorkshopSettingId, shiftCollection, workshopSettings.FridayPay, workshopSettings.OverTimePay,
 			workshopSettings.BaseYearsPay, workshopSettings.BonusesPay, workshopSettings.NightWorkPay, workshopSettings.MarriedAllowance,
@@ -822,7 +822,7 @@ public class CustomizeWorkshopSettingsApplication(ICustomizeWorkshopSettingsRepo
 
 		var notSelectedEmployeeSettings = employeeSettings.Where(x => !selectedEmployeesIds.Contains(x.EmployeeId));
 
-		var weeklyOffDays = command.OffDayOfWeeks.Select(x => new WeeklyOffDay(x)).ToList();
+		var weeklyOffDays = command.OffDayOfWeeks?.Select(x => new WeeklyOffDay(x)).ToList() ?? [];
 		using var transaction = new TransactionScope();
 
 		entity.EditSimpleAndOverwriteOnEmployee(command.Name, selectedEmployeesIds, groupSettingsShifts, command.WorkshopShiftStatus,