(126)The traceability and transparency of decision-making in procurement procedures is essential for ensuring sound procedures, including efficiently fighting corruption and fraud. Contracting authorities should therefore keep copies of concluded high-value contracts, in order to be able to provide access to those documents to interested parties in accordance with applicable rules on access to documents. Furthermore, the essential elements and decisions of individual procurement procedures should be documented in a procurement report. To avoid administrative burdens wherever possible, it should be permitted for the procurement report to refer to information already contained in the relevant contract award notice. The electronic systems for publication of those notices, managed by the Commission, should also be improved with a view to facilitating the entry of data while making it easier to extract global reports and exchange data between systems.