Formula for a Date Field Minus Number Field to give a new Dates

[j2turner]

I have a Target Start Date (Date field) and a number in days for Preparation of a project (Num Field). I am trying to create a column that gives me a Start of Preparation Date. I can do this easily in excel but it is not working in PowerBi all i am getting is an error and other formula like DateAdd wants a fixed days and wont let me add a Number Field.

[Target Date]-[Preparation Days] = New column Start of Preparation Date

Thanks in advance 🙂

[Padycosmos · Accepted solution]

Hope this video helps:

https://www.youtube.com/watch?v=e9rRfWJy7Co

[j2turner]

Thank you so much for all the help!!!!!

[j2turner]

Thank you so much, unfortunately i cant use NETWORKDAY on my version. I have to keep my version in order to share my reports on the system. The video it so good and explains everything so well

[Padycosmos · Accepted solution]

Hope this helps: 

You can create a measure like this

If you want to create a calculated column, you can use ths following

stdate = wd[End Date]-wd[Work Days]

[Padycosmos · Accepted solution]

Hope this video helps:

https://www.youtube.com/watch?v=e9rRfWJy7Co