The former Manchester United and England star took over at the League 2 outfit on February 11 and managed just seven games in charge.
After winning his first match at Boundary Park, the 44-year-old subsequently drew three and lost three before deciding to resign.
Scholes said in a statement that he had decided to resign with “great regret”.
“It unfortunately became clear that I would not be able to operate as I intended and was led to believe prior to taking on the role,” he continued.
Bizarrely, it is believed that Scholes handed in his notice to the club via WhatsApp.
According to Sky Sports, the club’s chairman Abdallah Lemsagam received the message out of the blue on Wednesday afternoon.
They also report that as of Thursday night, Scholes had not spoken to anyone on the board of directors since sending his resignation message.
After the news broke about the manner in which Scholes had resigned, fans took to social media and they certainly saw the funny side.
The news comes as Scholes’ former club Manchester United:
“Paul Scholes quit Oldham via a WhatsApp message. Brilliant”
“Paul Scholes quit Oldham via a WhatsApp message. Brilliant,” said one fan.
Another said: “Paul Scholes resigned from his managerial role through a whatsapp message������������������”
“Is it true that Paul Scholes resigned from the Oldham job via WhatsApp? That’s pretty hilarious if its true,” said another.
A fourth said on Twitter: “Paul Scholes resigned as Oldham manager via Whatsapp. Poor Oldham. Got dumped by text.”
The matter of Scholes’ resignation was brought up on Thursday night’s The Debate on Sky Sports, where guest Nigel Winterburn was asked about the claim.
“My hope is that he hasn’t sent the message by WhatsApp. I hope that he has reached out to the club to someone and told them rather than that,” he said.
A statement from released by Oldham chairman Lemsagam said: “Oldham Athletic are disappointed by Paul’s decision to resign and surprised by the reasons he has given.
“The club gave Paul all the support and autonomy that he asked for. He did not raise his concerns at all, informally or formally, prior to his resignation.
“He gave no opportunity to address any issues at all, simply resigning by text and then refusing to discuss matters.”