Hello everyone I have a brand new Ram 1500 that has a real small small leak out the rear main seal after I did my first oil change I check the oil and realized was overfill by a little not to much I drained some oil and the rear main seal stop leaking and hasn't leak anymore for 200 miles my question is

can overfilling a little create that small leak
do I need to take it to the dealer to change seal
thanks for your time guys