to_date conversion returning NULL as the result

I used the following formula to convert an int field to a date :

to_date ( fiscal year begin date , '%y%m%d')

"fiscal year begin date" has values like 20161225 (yyyymmdd)

The formula returns "NULL" (see screenshot) and I'm sure I'm missing something obvious.. thanks in advance for all the help!

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  • 6 mths agoLast active
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