Knowing their work makes a difference is the most important thing for millennial employees, according to the results of an online survey of almost 900 executives from around the world conducted by Century City-based global organizational advisory firm Korn Ferry in June.

When asked, “What matters most to your millennial employees?” 28 percent of respondents responded with, “Ability to make an impact on the business.”

Income was the least important, with only 3 percent of bosses saying it mattered the most to their employees.

“It’s important to note that as an archetype, millennials will stay engaged and productive if they feel they are valued,” said Jeanne MacDonald, the president of global talent acquisition solutions at Futurestep, the recruiting arm of Korn Ferry which conducted the survey, in a press release.

Young employees are less willing than earlier generations to work longer hours or on the weekends, according to the majority of respondents.

“Bosses of other generations who feel they show their own worth by working long hours need to understand this is not the case for millennials and respect their time on and off the job,” said MacDonald.

Almost half of employers said that millennials require “a lot more feedback” than other employees, but only 13 percent said they offered more feedback sessions for their employees.

MacDonald said employers should use these findings to harness the full potential of their companies.

“Organizational leaders who understand the differences in the workstyles and preferences of employees in different generations can uncover unconscious biases to foster greater collaboration and success,” MacDonald said.

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Finance reporter Caroline Anderson can be reached at [email protected]. Follow her on Twitter @Caroline_Mander.