Re: Updating items in ToDo with no Due Date
Hi @eenochs ,
I think on the basis of @SudeepGhatakNZ , we also need to consider the time difference.
Please see this test:
My area is UTC+8, and flow's running time is (UTC) Coordinated Universal Time, so I converted utcNow() to local time and obtained the local current time, so that today's date obtained is more accurate, and then Add one day as Due Date.

My Flow:

utcNow()
null
addDays(body('Convert_time_zone'),1,'yyyy-MM-dd')
Best Regards,
Sunshine Gu