I am doing a cake with fillings that will require that the cake be refrigerated over night. I am using buttercream frosting (customer does not want fondant) and am putting gumpaste decorations on them. Can I refrigerate the frosted and decorated cakes with gum paste decorations on it over night and how will this affect the cake and gum paste? I plan to take the cakes out of the frig in the morning and stack and finish. One cake is for the afternoon and one is for the evening.
Thank you for your help.

I had to do something like this a few weeks ago. I would recommend waiting until as close to the delivery time as possible to add the gumpaste decorations to the buttercream. The buttercream will cause the gumpaste to soften. What I did was I frosted the cake and refridgerated it throughout the next day (had to work until 5) Then right before I delivered the cake I added the gumpaste decorations. However I am sure it depends on how elaborate the gumpaste decor is as well. I just had a few figures to stick on.