We are preparing a large deployment into our production environment (Data Migration, Enabling a new integration, and deploying scripts/customizations). If something catastrophic happens.. Does NetSuite offer any Rollback options for our account (like resetting our account to previous backup)?

No

You should be utilizing a sandbox for this to test and practice on.

We have been testing this deployment sandbox for a few months, but my leadership is asking for a fallback plan.

@Josh Godfrey, I would divide this to data / metadata restore. For data — there are a few 3rd party companies which can help with that (Google for “NetSuite backup and restore”). I never used them, so can’t recommend. For metadata/customizations/scripts/etc. — we (Salto) can actually help with that. For such a one-time use, most likely our open-source version is more than enough. You can take a look at https://github.com/salto-io/salto — feel free to reach out if you need help. I would advise to make sure the data schema changes that you’re doing are backward compatible (so don’t delete/rename), and clean them up on a later take (otherwise, you’ll need to develop reverse-migrations).

I think NS technically can do a restore, but if I remember correctly, it starts at like $10k and might not be that fast. It's not been a realistic option for any scenario I've run into.

@RJMNS is correct. Technically, there is an option with NetSuite, but it is not cheap, and NetSuite will take forever.