I was just curious, im doing this cake for my daughter b day. now i have never had this problem before but im still an amateur at this.. When decorating this cake it keeps beading up with water condensation on top the frosting.. will this affect my cake or frosting? Why is it doing this, and how can i prevent it?

Sounds like the cake is very cold and coming to room temperature...thus the condensation and beading up. If you allow it to come to full room temp then you will see the droplets evaporate. If you don't need to refrigerate because of the filling then it's best to leave the cake out and covered until delivery. This way condensation won't occur.

Thank You so much for your advice, i will remember this next week when i do my biggest cake order of 3 half sheet cakes for a friend all due in the same week..it will be my first time using fondant so im gonna practice with it a week ahead of time.