The possible target resources.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/enums/multi_party_auth_review_target_resource.proto)

| Enums ||
|---|---|
| ## `CUSTOMER_USER_ACCESS` | Resource is CustomerUserAccess. |
| ## `CUSTOMER_USER_ACCESS_INVITATION` | Resource is CustomerUserAccessInvitation. |
| ## `UNKNOWN` | Value unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |