New York (CNN Business) Employees for the online retailer Wayfair say they plan a walkout from company headquarters Wednesday in protest of the company selling furniture to migrant detention facilities.

According to a woman identifying herself as an employee of the company, Wayfair employees learned last week that an order for about $200,000 worth of bedroom furniture was placed by the global nonprofit BCFS, which operates migrant facilities for the Department of Health and Human Services. BCFS is set to open a new facility in Carrizo Springs, Texas , which will accommodate about 1,600 unaccompanied minors.

More than 500 employees sent a letter Friday to senior management, asking the company to no longer do business with BCFS. They also asked Wayfair to establish a code of ethics that "empowers Wayfair and its employees to act in accordance with our core values." CNN has seen a copy of the email sent by employees to Wayfair senior management.

"The United States government and its contractors are responsible for the detention and mistreatment of hundreds of thousands of migrants seeking asylum in our country — we want that to end," the employees said in the letter. "We also want to be sure that Wayfair has no part in enabling, supporting, or profiting from this practice."

Wayfair management responded in a letter to employees, also obtained by CNN, saying it still plans to do business with BCFS.

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