Hi Muthu,
Thank you for using syncfusion products.
#Regarding Blockout Dates in SfCalendar
We have checked the reported query from our end. we have documented ‘How to use the Blockout Dates in SfCalendar’ in our user guidance document. Please refer to the following UG Documentation for your reference.
Please let us know if you have any concern.
Regards,
SaiGanesh Sakthivel