Sorry, I was on my mobile just now, so a bit fiddly to provide a direct link.
This is the approach I’m referring to:
This is done purely in Glide - no spreadsheet formulas required. And the same general approach can be used to generate any variation of an alphanumeric code that you like (with the numeric part auto-incrementing). For example, you could have something like:
- USER001
- USER002
- USER003
- etc…
The “USER” part would be fixed, with the numbers auto-incrementing.