In a lifetime in media relations, it was the biggest announcement of her career.
But with the eyes of the world focused on the most anticipated royal birth in years, The Duke and Duchess of Sussex's new PR guru failed to inform media outlets worldwide what was going on - because emails failed to send.
That is the excuse for Monday's bizarre miscommunications from the team run by Sara Latham, the Anglo-American former Clinton aide appointed by Harry and Meghan in March to run their media operation.
The delays and faults meant the ITV lunchtime bulletin missed the news, and left veteran BBC royal correspondent Nicholas Witchell mumbling into incoherence during a live two-way on Monday evening.
Prince Harry revealed shortly after 2pm that his wife had given birth to a healthy baby boy on Monday morning
Sara Latham, 48, was appointed to run the Sussexes' press operation in March
Yesterday Kensington Palace blamed 'technical difficulties on site at Windsor' for some media outlets receiving statements on time, others late, and some not at all.
But even that goes no way to explaining why, if the Duchess gave birthday in a London hospital at 5.26am, the press - who presumed her to be heavily pregnant in Frogmore Cottage - were told only that she had 'gone into labour' at lunchtime.
What we now know is that Meghan was spirited away from Frogmore on Sunday night, accompanied by her husband, her mother, and her royal protection officers.
The team headed to Portland Hospital in London, where Victoria Beckham gave birth and where a room in the birthing wing can cost up to £15,000.
At 5.26am, Meghan gave birth to a healthy baby boy weighing 7lbs 3oz - the Queen's eighth grandchild, and the seven-in-line to the throne.
A sign was placed outside the Prince Harry pub in central Windsor with the message 'It's a boy' as the establishment also celebrated with balloons - not not until long after the birth happened
The announcement was also made from Buckingham Palace in a statement which included a long list of members of the Royal Family who were 'delighted' at the news and said Meghan's mother Doria was 'overjoyed' - her father Thomas was conspicuously absent from those named
A man dressed as a town crier outside Windsor Castle proclaimed news of the birth of the Duke and Duchess of Sussex's baby once the world was told
At around 4pm members of staff set up an official notice on an easel at the gates of Buckingham Palace in London
Less formally, the BT Tower in London broadcast a congratulatory message across the capital after the birth was announced - long after it had taken place
Sunday night: Meghan and her mother Doria are driven in secrecy to London's Portland hospital accompanied by royal protection officers
Monday, 5.26am: Meghan gives birth
6.30am: Senior members of the Royal family are informed
1pm to 2pm: Palace aides try to send emails to alert the media that Meghan had 'gone into labour' - despite the fact the baby had been born six hours previously. But most outlets do not receive the emails.
1.30pm: Most of the media (and the rest of the world) still know nothing, but a spokesman for the Sussexes calls Sky News to arrange coverage of Harry's statement.
1.45pm: Sky News exclusively reports Meghan is in labour. Sky was randomly selected as the pool broadcaster and distributed the footage as soon as it went to air, but it was seven minutes before it arrived with the BBC, and too late for ITV to cover in their 1.45pm lunchtime news bulletin.
2.03pm: The Palace's email statement finally sends successfully to all outlets.
2.15pm: Harry pre-records his charmingly gleeful statement about the couple's to-die-for son.
2.37pm: The Sussexes' Instagram account posts a picture saying 'It's a Boy', and the palace issues a press release announcing the birth
2.40pm: Harry's statement is broadcast
Tuesday, 12.28pm: Palace PR officials issue apology over the day's timings and announcements. But they still won't confirm where the baby was born, or explain why the world was told the Duchess was in labour when she'd already given birth.
Meanwhile, the world new nothing of this and assumed she was still in Windsor, possibly on the verge of being induced with her baby more than a week overdue.
It was not until hours later, at 1pm, that the Sussexes’ new communications chief Sara Latham arranged for emails to be sent to news outlets.
It may not be a coincidence that the Anglo-American Kensington Palace operation timed the announcement to arrive at 8am Eastern Standard Time, in the middle of the American morning news shows.
But the emails didn't send.
Ms Latham, 48, later explained there had been a 'colossal tech failure’' which meant the email informing the press did not reach most inboxes until more than an hour after it was sent.
She said: 'We sent emails which showed as sent at 1327, 1349, 1403,' according to The Telegraph.
However in the meantime, Sky News (which had been picked at random to be the 'pool' broadcaster which would syndicate its footage to all networks) had received the crucial call from the Palace to set up the Prince Harry announcement.
So at 1.45pm, which most outlets still in the dark, the Murdoch channel broke the news to the world that Meghan was 'in labour'. Newsrooms around the world scrambled to catch up.
To make matters even more confusing, Buckingham Palace's press office was still denying the baby had been born, according to a BBC source quoted in the Sun.
Less than an hour later, with journalists' and royal watchers' heads still spinning, Harry and Meghan's Instagram account posted a picture saying 'it's a boy'.
Yesterday Kensington Palace apologised 'profusely' for the technical glitch on which they blamed arrival of the 1pm emails, and for the 'inconvenience it caused'
But the apology leaves a number of questions unanswered.
The birth was officially announced on the Instagram page of the Duke and Duchess of Sussex at 2.37pm, just a short nine hours after it happened
It might be understandable that the son of Princess Diana might want to keep the world's media away from speculating about the health of his wife and son through the course of her labour.
But why, if the duchess had a healthy baby at 5.26am, was the world kept completely in the dark for more than eight hours?
And why was it announced first that she had gone into labour, when in fact the baby had been born?
Why if Harry's announcement had been planned all along - as was later made clear - was the media not briefed in advance what it could expect, rather than a single phonecall to a single broadcaster?
And why, contrary to traditional and protocol, have the Sussexes insisted on keeping secret the names of the medical team who helped with the birth and the location of the delivery - when it will be legally recorded on the birth certificate anyway?
She has worked as an aide to the Obamas, the Clintons, and Tony Blair, but Sara Latham may find the questions she faces in the coming days the most challenging of her career.
How Meghan and Harry’s new
