Often there is the requirement, that data imports should be automated if possible.

We could not find a possibility to import holidays into the holiday scheduling for usage in the SLAs.

I understand that it does not seem to be possible to programmatically import holidays (calendars/calendarrules internal use limitation). But there is an excel import functionality, which does not work either - I get the message "The 'Create' method does not support entities of type 'holidaywrapper'. MessageProcessorCache returned MessageProcessor.Empty." for every holiday.