- customer-identifier field: customer name (e.g., 'NICK THE GREEK') - account-number field: street address (e.g., '600 VISTA WAY') - Combined they provide full customer identification with address - Updated test to verify both fields and their concatenation 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>