I had my oil changed at the dealership for my 2013 Corolla. It is full synthetic oil. The next day, I checked the oil on a cold engine before I started it for the day. The level is not the max but it is not full, ether. Is it ok if I just leave the level at this point?
It is completely fine as long as it is between the high and low marks.
That said, if you take it back to where you got the oil changed at and tell them it looks a bit low, I'd bet they'd top it off for you. They want to keep you as a customer and it is really a small amount of oil which they didn't include in the first place.