How to find the LEN of an 'Autonumber' field?

Hi guys, I’m trying to create a unique alphanumeric code(length 4) out of Record ID and Autonumber. But I am getting an error while doing so. Is there any way to find it?


LEN() doesn’t work on numbers.

So try LEN({Random}&"") to force it to calculate for a string.


This is perfect, thanks.!!

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