Not sure why, but I don’t have the “Add Effort” field in my Workload tab in Portfolios. According to the tutorial it should appeat at the front before the word “Today”
Hi @anon86063821, welcome to the Asana Community Forum 
Can you please provide a larger screenshot, showing the full top bar including the Portfolio name? See below for an example 
Looking forward to hearing back from you!
Hi @Rebecca_McGrath just tagging you in. What do you think of the above?
Thanks!
Thanks for getting back to me, @anon86063821.
Do you have Projects added to the Portfolio already? And if so, are there tasks within this Project that have upcoming due dates and an assignee?
Hi @Rebecca_McGrath
Yes to all of the above
Are you guest or member in this organisation?
Also, just to be clear, you do have an effort custom field added to the projects themselves already, right? The projects you have in that portfolio.