Differences between DATEADD and PARALLELPERIOD in DAX

The different results of DATEADD and PARALLELPERIOD in DAX may impact many other time intelligence functions that are syntax sugar of these two. Article and download: https://sql.bi/827982?aff=yt How to learn DAX: https://www.sqlbi.com/guides/dax/?aff=yt The definitive guide to DAX: https://www.sqlbi.com/books/the-definitive-guide-to-dax-2nd-edition/?aff=yt