[For more current case annotated texts by this author, see Bernstein & Lookofsky, Understanding the CISG in Europe, 2d ed. (2003) and Lookofsky, Understanding the CISG in the USA, 2d ed. (2004).]
M. Delivery Before the Date Fixed
234. The seller must deliver the goods as required by the contract.[l] If the contract provides that the goods must be delivered on a fixed date or within a given period, delivery at an earlier date would, without more, constitute a breach. In this situation, Article 52(1) provides that the buyer may take delivery or refuse to take delivery. Assuming, however, that the breach is not fundamental, a buyer who refuses delivery will have to accept re-delivery when made at the proper time. [page 127]
N. Delivery of Excess Quantity
235. The buyer is not obligated to accept (or pay) for more than what he has agreed to accept. If the seller delivers more than that which is provided for in the contract, the buyer may refuse to take delivery of the excess quantity; however, if the buyer takes delivery of all or part of the excess quantity, he must pay for it at the contract rate.