Error with date function - calculated date column from text

cathoms try this, if there is error in conversion it will return blank() as catch-all errors otherwise return a date

ApptCreationDate = 
    IFERROR (  
        DATE 
        (
           LEFT(Visits[AppointmentCreationDateKey],4),
           MID(Visits[AppointmentCreationDateKey],5,2),
           RIGHT(Visits[AppointmentCreationDateKey],2)
        ), BLANK()
    )

✨ Follow us on LinkedIn

Check my latest blog post The Power of Using Calculation Groups with Inactive Relationships (Part 1) (perytus.com) I would ❤ Kudos if my solution helped. 👉 If you can spend time posting the question, you can also make efforts to give Kudos to whoever helped to solve your problem. It is a token of appreciation!

⚡ Visit us at https://perytus.com, your one-stop-shop for Power BI-related projects/training/consultancy.⚡