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

[Chintan_Savali1]

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?

Thanks,
Chintan

[Kamille_Parks · Accepted solution]

LEN() doesn’t work on numbers.

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

[Chintan_Savali1]

This is perfect, thanks.!!