For some countries like UK there is a system of 'Keep in touch days' when employees on maternity leave can come to work occasionally to keep in touch. These leaves has a limit of days but the main problem is that you need to make a configuration where it would be possible to request more than one time type on the same date.
SAP SuccessFactors Employee Central (EC) - All Versions
This is currently not supported. We do have in TIM a way to handle collision but this was not build to allow two leaves on the same date.
For additional information on how the collision work and what is the type of scenario that this support, please refer to Time Management Collision Resolution.
To be able to request two different types of leave on the same date you would need to create an enhancement request for it, please refer to 2090228.
keep in touch during parental leave , KBA , LOD-SF-EC-TIM , Time Off , Product Enhancement