Salesforce’s headquarters in San Francisco. (GeekWire Photo / Todd Bishop)

Amazon and Salesforce today strengthened their relationship with a new cloud partnership focused on technology for customer service centers. The announcement comes just days after Salesforce and Microsoft unveiled a cloud alliance of their own.

Under the new deal, Salesforce will use Amazon Connect, an Amazon Web Services offering for call centers, for its new Service Cloud Voice product. The new service from Salesforce will give call center workers a new set of tools to better do their jobs.

As part of the agreement, AWS content will become available on Trailhead, Salesforce’s free online learning platform, to train people in cloud technology.

A press release on the deal reinforced that “Salesforce already relies on AWS as its primary public cloud provider.” The companies struck a $400 million cloud deal in 2016 and got even closer last year.

“For years AWS and Salesforce have had a deep relationship, and we share a commitment to integrate our services to provide customers with industry leading, enhanced solutions,” AWS Vice President Ariel Kelman said in a statement. “We are delighted that Salesforce has chosen Amazon Connect as its preferred contact center technology and by bringing AWS content onto Trailhead, we are continuing to enable businesses to leverage the full power of both platforms to provide world-class customer service.”

Despite its close relationship with Amazon, Salesforce has worked with a variety of cloud providers over the years. Last week, it struck a deal with Microsoft, putting aside a complicated history for a new cloud partnership.

As part of the agreement Salesforce will move its Marketing Cloud off its own infrastructure to Microsoft’s Azure cloud. Salesforce also pledged to build an integration between its services and Microsoft’s Teams collaboration app.

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