Last update: 27.04.2026

CS-Cart Customer Number (Kundennummer) Pro Add-On

Stop relying on random user_ids and upgrade to a real customer identity system built for business.

This addon automatically assigns every customer a permanent, human-readable Customer number (Kundennummer) that’s audit-safe and never reused.

It supports both internal IDs for invoices/accounting and external IDs for ERP, payments, and marketplaces, ensuring clean data across all systems.

The result: structured, scalable customer management that finally aligns your shop with real-world operations.
Your CS-Cart product
$64.99
Lifetime plan cost.   Learn more

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