Since at least 1989, the European Parliament has been reaching resolutions on the desirability and need to bring together the private laws of the member states via harmonization and/or codification. (OJ 1989 C 158, 26.6.1989, p. 400, OJ 1994 C 205, 25.7.1994, p. 518.)
Contract (including sales law) has been a primary focus as befits a trading bloc.