A single operation (create or remove) on customer user access invitation.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v25/services/customer_user_access_invitation_service.proto)

| Fields ||
|---|---|
| ## `operation` Union field. The mutate operation `operation` can be only one of the following: ||
| ### `create` | `https://developers.google.com/google-ads/api/reference/rpc/v25/CustomerUserAccessInvitation` Create operation: No resource name is expected for the new access invitation. |
| ### `remove` | `string` Remove operation: A resource name for the revoke invitation is expected, in this format: `customers/{customer_id}/customerUserAccessInvitations/{invitation_id}` |