Hey @Thomas_Price!
Welcome to the forums!
This should be what you’re looking for:
IF(
{Dates agreed},
DATETIME_FORMAT(
DATEADD(
{Dates agreed},
-14,
'days'
),
'DD/MM/YYYY'
)
)
Let me know if it throws you an error, but it should be pretty straightforward!
I’m happy to answer any questions you might have about it or help out if you want to keep exploring and adding more in for your workflow.