The 2Checkout system creates unique Customer IDs by default for all subscriptions it generates.
Customers purchasing products /subscriptions sold through the 2Checkout platform can be assigned a unique customer IDs that you control in addition to the unique Avangate customer IDs created and assigned automatically.
External Customer IDs and Avangate Customer IDs are complementary.
Customer IDs can be:
- Unique alphanumeric ID (string) defined per-customer.
- Unique numerical (integer) ID generated by the 2Checkout system automatically.