This product targets market parties in GOs markets, especially NEMOs and issuing bodies (IB), RES generators and GOs buyers or certificate buyers (energy consumers or retailers). This tool is intended to improve trading of Guarantees of Origin in the SEE region in an organized way. The developed module is designed for both auction based and continuous based trading and will be adjustable for the specific needs of the market. The platform brings in several innovations: it establishes a direct connection between Issuing Bodies (IB) and Guarantees of Origin Market Operator (GOMO), it enables a cross border trade of GOs between different domains, and it links auction and continuous trades, which in turn makes a prerequisite to trade GO during the whole year.