Hi Audrey, slightly off topic but:
If you had to edit the system specifically to accept new ARC numbers, then what’s the point of the new ARC format? It should work by default.
If it doesn’t, then how’s it different to the old format, and what is the purpose of the format change?
Related discussions here:
https://tw.forumosa.com/t/moi-is-planning-to-change-the-id-number-format/