When its asking me for my daughters net income from her federal return(line 236) and i don't have a line 236 on my t4, is it just the line 14 from her t4?

It is asking for the number on line 236 of her income tax return. It has nothing to do with either you T4 or her T4.  It is the net income figure on her T1 tax return, which you must do first.

Does this mean you need to wait for her Notice of Assessment as it does not show line 236 when you complete the taxes online

No, it means that when you have finished her return, you go to the review tab, scroll down to bottom line tax summary, and scroll down a bit to detailed tax summary.  You will find the amount on line 236 there.

Thank you. I actually found this info in another post

There you go!  Good job.

If I haven't done daughter's return yet and her situation is same as last year, can I just use box 14 amount?

No, because that is not net income.  That is gross income.  Use line 236 from last year.