# Vault Customer The details about a customer in PayPal's system of record. ## Structure `VaultCustomer` ## Fields | Name | Type | Tags | Description | Getter | Setter | | --- | --- | --- | --- | --- | --- | | `id` | `?string` | Optional | The unique ID for a customer generated by PayPal.
**Constraints**: *Minimum Length*: `1`, *Maximum Length*: `22`, *Pattern*: `^[0-9a-zA-Z_-]+$` | getId(): ?string | setId(?string id): void | ## Example (as JSON) ```json { "id": "id2" } ```