If you wish to disable an absence type on a global level, please find the below guide. 
  1. Navigate to Admin tools > Admin panel
  2. Go to Global > Absence type set up
  3. Identify the absence type to update by either browsing or using the search filter at the top of the page.
  4. Press the Edit button on the absence type that requires updating.
  5. In the Booking Settings area of the page locate the settings labeled Can book own absences, Can book reportees absences and Can book others absences.
  6. Update the settings to No.
  7. At the bottom of the page press, the orange Save button.
Please find our video tutorial link below:
https://youtu.be/FQ6Birq6KR4

Note: You will need the "Absence Setup" Administrator Access Permission applied to your e-days role in order to carry out this task.