In May 1902, Barton left the country to attend the coronation of Edward VII and 1902 Colonial Conference. Deakin served as acting prime minister until Barton's return in October 1902. During this time he dealt with the resignation of Governor-General Lord Hopetoun over a salary dispute and conflict with the South Australian government over the external affairs power, which was resolved in favour of the federal government. He also secured the passage of the "Customs Tariff 1902", which the Senate had twice returned to the House with a series of proposed amendments. In view of the urgent need for government revenue, Deakin successfully convinced the House and his fellow ministers to accept the amendments, but in a way that avoided setting a new constitutional precedent over money bills.