UX Changes Need Approval?

Hey everyone. Quick question regarding Microsoft approvals.

We’ve already secured approval for our test and production environments, but we recently changed out a new, slightly refreshed UX for the feature (this is still in out testing as we can't release without Microsoft's approval).

Does anyone know if we need to re-submit for approval for a minor UX change? And if we do, can we just drop an email to the CSPP team, or do we need to fill out the official form as a brand-new request?

Thanks in advance!