Kent Mickleborough is a grain buyer for a Canadian company. Chris Achter is a Canadian farmer from whom Mickleborough has purchased flax from over the years. Each order requires a fresh contract, as grain prices fluctuate. Their negotiations typically happen via text message and images, with Mickleborough texting a photo of the latest contract to Achter, who confirms the terms and, months later, delivers the order.

Source: Thumbs-Up Emoji Response to Contract Leads to $62,000 Fine – Core77