Hi @jeffha77,
Please try to use workflow definition language function split.
I created a simple flow for your reference.
The flow is triggered by a Button, in the first Compose action, I use the split function to split the string using “@”.
split(triggerBody()['text'],'@')
Then in the second Compose action, use the following function to get the username of the email address.
outputs('Compose')[0]
Then when the button is clicked and an email address is entered, it will return the username part of the email address.
Please take a try with it.
Best regards,
Mabel Mao
