Abstract: A method of modifying trading plans during transit of a conveyance including transiting goods on a conveyance from a shipping location to a destination location; responsive to a change in circumstances that will cause a delay in arrival of the conveyance to the destination location, searching for an alternative destination location to deliver the goods and searching by the processor for a buyer to purchase the goods for delivery at the alternative destination location; connecting to a blockchain; creating a new block for a purchase agreement that provides for the purchase of at least a portion of the goods by the buyer; and appending the new block having the purchase agreement to the blockchain.