I'm stuck in Challenge 2 of the Advanced Flow for Agentforce Superbadge. In the Verify Code and Log Verification flow, the 'Last Customer Verification' field doesn’t appear in the 'Update Contact’s Last Customer Verification' step.

The fix is usually that the field’s field-level security is still hidden for your admin user, so Flow can’t show it in the update element. In this Superbadge step, you need to make Last Customer Verification editable for both the agent user and your own admin/profile, then reopen the flow and refresh the field list.