Holiday List Allocation

In ACCU360 ERP HR module, if we assign Holiday list to a particular employee
Let Say Saturday off for particular employee so after assigning Holiday list and after sometime if we want to amend the Holiday list, Is it necessary to delete all data linked with Holiday list like, Leave application, Attendance for updation

Generally no deletion is required. You can amend the holiday list (i.e add new days or remove an existing future day in the holiday list) whenever required. But you cannot remove the day which has gone past on which related docs has been created such as attendance,leave allocation,leave application and payroll entry. @Haider