Hello. Tell me, do you have any errors when assigning a discount on an item?
I think your strat date is not correct you should to set start date at least after today date. mean you have to choose at least from tomorrow date (discount start date).
Thanks for the answer, it helped. Be careful with the start of the date.
so, your problem solved, right? it will help other authors for the same issue.
Yes it helped, thanks for the answer.