# Customer Request Customer in merchant's or partner's system of records. ## Structure `CustomerRequest` ## 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_-]+$` | getId(): ?string | setId(?string id): void | | `merchantCustomerId` | `?string` | Optional | Merchants and partners may already have a data-store where their customer information is persisted. Use merchant_customer_id to associate the PayPal-generated customer.id to your representation of a customer.
**Constraints**: *Minimum Length*: `1`, *Maximum Length*: `64`, *Pattern*: `^[0-9a-zA-Z-_.^*$@#]+$` | getMerchantCustomerId(): ?string | setMerchantCustomerId(?string merchantCustomerId): void | ## Example (as JSON) ```json { "id": "id8", "merchant_customer_id": "merchant_customer_id0" } ```