# AttachResponse OK ## Fields | Field | Type | Required | Description | | -------------------------------------------------------------- | -------------------------------------------------------------- | -------------------------------------------------------------- | -------------------------------------------------------------- | | `customer_id` | *str* | :heavy_check_mark: | N/A | | `invoice` | [Optional[models.AttachInvoice]](../models/attachinvoice.md) | :heavy_minus_sign: | N/A | | `payment_url` | *Nullable[str]* | :heavy_check_mark: | N/A | | `required_action` | [Optional[models.RequiredAction]](../models/requiredaction.md) | :heavy_minus_sign: | N/A |