According to Official Guinness Records,
The longest focaccia bread measures 120.94 m (396 ft 9.4 in) and was prepared by Alessandro Canu (Italy), in Montevarchi, Italy, on 15 July 2018.The donations received from the people present will be given to a local charity called C.a.l.c.i.t.
For a complete list of 2018 records, please visit 2018 Guinness Records in Italy.