Pep-Online is a well established e-tendering software, which was developed and is operated by the official journal of Austria, the Wiener Zeitung. Within the year 2007 all texts for the user interface were translated and the software was adjusted to the new Croatian public procurement law; the requirements of Narodne Novine, the official journal of Croatia, also had to be fulfilled. Before 2008 all tenders were printed in the weekly edition of Narodne Novine, from January 1, 2008 they are available online on a daily bases. Additional functions like bidder lists, automatic information for bidders, document down- and upload etc. are available. The entered texts and forms are published on the internet as well as printed on paper in the Croatian official journal, if required. Public buyers enter the required information about a public procurement procedure into this system and an electronic consistency check ensures that all data are consistent and valid. Furthermore, the user of Pep-Online defines the date and the media in which the tender should be published and uploads the tender documents. This turned out to be a big advantage for public buyers as it speeds up the publication process immensely and increases the availability of specifications. The availability on the internet is also beneficial for potential bidders as they can search the database online, visit the buyer's profile or define automatic search profiles. If the supplier uses search profiles, the supplier receives information automatically night by night. After registration the supplier has the possibility to download tender documents and is automatically registered as a potential bidder and will therefore be informed, if there are any changes in the procedure. No trainings where held for the users of the system which proofs the good usability of this programm.