A Bible Id is a six character string used to identify the Bible for publishing. The format is LLLVVV, where the LLL is the language code (usually ISO-639-3) and VVV is the version code.
You enter it in the Team Settings dialog box.
Example:
For American English (en), a Bible Id could be ENGNIV. In this case, you could say something like this:
"English New International Version whose Bible Id is E-N-G-N-I-V."
Only a person with the role of Admin and who has FOBAI (https://forum-intl.org/) credentials can see the Publishing area of the Team Settings dialog box.
Choose Language Details dialog box
Use the Team Settings dialog box
https://www.faithcomesbyhearing.com/bible-brain/core-concepts