“Congratulations on your new job Erron – we’ll miss you,” she added with a hand clapping emoji.
Earlier in the day, just after the news broke, she had tweeted: “Outstanding directors make presenting a pleasure – thank you for everything Erron.”
And Susanna, 50, wasn’t the only Good Morning Britain star to send warm wishes to the show’s boss.
Former host Piers Morgan, who left the show seven months ago, gave his former colleague a special shout out on Twitter, writing: “The very best TV directors thrive off unpredictability, spontaneity & flying by the seat of their pants.”
“Loved working with Erron because the more I tried to trip him up, the more he enjoyed it. A brilliant talent and ferociously loyal colleague & friend. Huge loss for GMB.”
Erron himself also took to social media to announce the news, saying he was sad to leave the morning news programme, but was looking forward to a brand new chapter and challenge.
He wrote: “After 13 years at @ITV and seven as the Series Director of @GMB I am leaving the programme at the end of the year to take on an exciting new challenge.
“I’ve had an amazing time working with a brilliant team in front of and behind the camera and I am so proud of the programme I helped launch in 2014.”
Erron continued: “I’ve had some incredible opportunities @ITV; launching @itvpeston, directing the prime time leaders debates, #LifeStories and exclusive interviews with @piersmorgan and President Trump as well as travelling the world.
“Not forgetting somehow getting a part in Bridget Jones Baby!"
He concluded: “I’d like to thank GMB Editor @NeilThompson62, Peston Editor Vicky Flind @flindv10 and ITV Daytime MD Emma Gormley for believing in me.
“The formidable studio crews that make me look good each day and our fabulous on air team. I’m looking forward to the next chapter and a lie in!”
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