In this project a contextualization is carried out on the productive chain of the countryside in Colombia and especially in the Department of Boyacá, municipality of Pauna, in which it is reflected that agricultural production is the main economic activity of the inhabitants of this municipality, and in which the usual production and especially marketing processes that are currently carried out, are a difficulty in guaranteeing the sale of products and in expanding markets. Systematizing processes in the purchase of products, in the promotion and commercialization of the same, are the factors determined as necessity and problem in the municipality, and which is solved with the design of a web application that allows the structuring, monitoring and control. in processes of purchasing products from farmers in the municipality, dissemination, marketing and digital marketing of products.