Extracting text before a delimiter

Hi unnijoy ,

Does your Name & ID column contain data like "AA" without parentheses? If so, you will get an error when using the DAX provided by amitchandak . 

Try the following formula:

Name = 
LEFT(
    'Table'[Name & ID],
    SEARCH(
        "(", 
        'Table'[Name & ID],
        ,
        LEN('Table'[Name & ID]) + 1
    ) - 1
)

If the problem is still not resolved, please provide detailed error information or the expected result you expect. Let me know immediately, looking forward to your reply.

Best Regards,
Winniz

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