> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v23** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/reference/rpc/latest/SuggestSmartCampaignBudgetOptionsRequest).

Request message for `SmartCampaignSuggestService.SuggestSmartCampaignBudgetOptions`.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v23/services/smart_campaign_suggest_service.proto)

| Fields ||
|---|---|
| ## `customer_id` | `string` Required. The ID of the customer whose budget options are to be suggested. |
| ## `suggestion_data` Union field. Required. For first time campaign creation use SuggestionInfo, for subsequent updates on BudgetOptions based on an already created campaign use that campaign. `suggestion_data` can be only one of the following: ||
| ### `campaign` | `string` Required. The resource name of the campaign to get suggestion for. |
| ### `suggestion_info` | `SmartCampaignSuggestionInfo` Required. Information needed to get budget options |