Does it matter if you future or back-date an absence?
The best practice would be entering your absences ahead of time or on time. With that said, absences can be entered in the past as well. If at the time of the absence, the employee was in a different role, they should reach out to HR for assistance.
For a step-by-step guide on how to enter an absence, please review the Submitting an Absence Request knowledge article.