There are numerous examples on how to generate automated sequence numbers for Internal Reference but they are all rather old and I can't get it to work in v18, which is the first version I've tried it on.  The most recent example I've seen is for v17 and one might think that it would also work on v18 but I'm not having any luck on either Community or SaaS.

I'm just reaching out here to ask if anyone else has made this to work.  Did this get broken in the v18 release?  Is there anyone out there that has gotten it to work in v18?  Thanks!