A single update on a customer.

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

| Fields ||
|---|---|
| ## `update` | `https://developers.google.com/google-ads/api/reference/rpc/v26/Customer` Mutate operation. Only updates are supported for customer. |
| ## `update_mask` | `https://protobuf.dev/reference/protobuf/google.protobuf#field-mask` FieldMask that determines which resource fields are modified in an update. |