DUBAI—French President Emmanuel Macron claimed Saudi Arabia’s crown prince experienced agreed to re-engage with Lebanon immediately after Riyadh lower ties with its neighbor, in the very first excursion by a big Western leader to the kingdom because the 2018 killing of dissident journalist Jamal Khashoggi.

Lebanon’s financial disaster deepened final month immediately after Saudi Arabia banned the country’s imports and expelled its ambassador, citing annoyance more than the job that Hezbollah, an ally of Saudi rival Iran, performs in Lebanese politics. Lebanese Facts Minister George Kordahi—whose remarks about the Saudi-led war in Yemen sparked that row—resigned in advance of Mr. Macron’s excursion, saying he hoped carrying out so would solve the disaster.