In WFM verson 8.1.1, this new feature is available:
Auto Publish Time Off to Master Schedule—WFM 8.1.1 automates the insertion of granted-not scheduled time-off into the schedule. The feature works for agent requests as extension of auto-granting functionality. When time-off is granted and master schedule exists, the application will immediately publish the time-off to master schedule.
When an agent recalls granted time-off and such time-off exists in master schedule, the application will remove the time-off from master schedule, substituting it with a base-line schedule.
The question I have is about the base-line schedule. How does WFM determine what hours to insert back into the agent's schedule?