# getCustomerId

### Return the `customerId` saved during the create customer

```java
    /**
     * Returns Customer ID
     * @return String `customerId` of the user registered in the app
     * @nullable if no Customer logged in or not registered yet
     */
    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)
    public String getCustomerId();
```