Gupost Navarra will continue the Commonwealth from the region of Pamplona water bills, after the turnover of water tender award. The amount of this contest is 52,000 a year and its duration is two years. This competition process entails the design of invoices and the inclusion of the variable data by the it Department. Subsequently the same printing is done with a variable printing, where intelligent printing occupies a very important role. In the printing, envelope printing, the printing of invoices, mailing, and the inclusion of the invoices within each married envelope, are actions that require machining, like some synchronized manipulated and of high quality. Finally the invoices are deposited in the postal operator that performs the distribution and mailing of letters. In compliance with article 9 of the Foral law of contracts, the Royal Decree 364/2005 of April 8 and art. 224.6 of law 6/1990 of the Local administration of Navarra, this contract was reserved for special employment centres Gupost pertenediente Gupo Gureak, where most of the template has some kind of disability, to cover the entire process, from the elaboration of the idea, advice on using communication tools, production with its own resources to monitoring and interpretation of the results of any direct marketing campaign, give the customer everything that asks us in every moment and in every situation. Original author and source of the article.