when i create a new promotion and setting 2 requirments do both of them need to be met in order the promotion to take effect of 1 of them is only needed ?
how can i achieve a promotion based on this ? User has posted at least X times in the last Y days in node(s) Z ???
and User has received at least X likes in the last Y days ??
If there isn't a criteria that covers that, it isn't possible out of the box. There may be an add-on that adds criteria like that, though I'm not aware of one.
I had problems with promotions that are just not done;
empty the promotion_log and the group_change_log helped before calculating all promotions again.