Elon Musk said he has 'no idea who the CEO' of Twitter is after being sent an auto-email saying 'it's time to start managing'

• Elon Musk now owns Twitter after sealing his $44 billion takeover on Thursday.
• The company sent him an email telling him to start a "Managing @Twitter 101" training course.

Even the world's richest man may still have a thing or two to learn about running a company, according to the automated systems at his latest acquisition, at least.

Twitter sent Elon Musk an email telling him "it's time to start managing @Twitter 101," in reference to a training course about "what it means to be a good manager at Twitter."

It came days after he finally took control of the social-media platform in a $44 billion deal that took months to close after the billionaire attempted to walk away.

Musk tweeted on Sunday: "Just received this email from Twitter. This is an actual, real email that was autogenerated."

He joked: "So demanding to allow a mere 30 days to learn this priceless information! But Management 201 is such a tantalizing carrot."

A user responding to his tweet asked who the CEO was. Musk responded: "My title is Chief Twit right there in the bio. No idea who the CEO is."

Musk's comments come despite him being set up under internal profiles at Twitter, including a company directory and Slack, with the CEO title, two people familiar with the changes told Insider on Saturday.

Musk fired Parag Agrawal, the CEO of Twitter, as one of his first moves after acquiring the company, along with Ned Segal, the chief financial officer; Vijaya Gadde, the legal chief; and Sean Edgett, the general counsel.

A person familiar with the matter told The Information that Musk dismissed the executives "for cause" to try to avoid severance payouts and unvested stock awards, suggesting he had justification for their termination.

Twitter didn't immediately respond to Insider's request for comment.