No. Orgain products are shelf stable. They tolerate heat well, so prolonged heat exposure such as in a delivery truck would not impact the safeness of unopened product. It could potentially have an impact on taste.
We recommend cooling the Orgain ready-to-drink shakes in a refrigerator. Please do not store any Orgain powder product in a refrigerator as moisture can shorten the shelf life and cause clumping. Store the powder product in a pantry or closet to cool it down.