For Hotel ads, you can assign a bidding strategy for an individual campaign.

> [!IMPORTANT]
> **Key Point:** For CPC% and Manual CPC strategies, while you assign them at the campaign level, you [set bid amounts at the ad group level](https://developers.google.com/google-ads/api/docs/hotel-ads/bidding/set-bids.md.txt).

Details about choosing bidding strategies for Hotel ads can be found in the
[Bidding overview for Hotel ads](https://support.google.com/google-ads/answer/9244120). After becoming familiar with
bidding strategies, you can use the Google Ads API to assign and update Hotel campaign
bidding strategies.

## Assign a bidding strategy

To assign a strategy as part of creating a new Hotel campaign, follow these
steps:

1. Choose a [`campaign_bidding_strategy`](https://developers.google.com/google-ads/api/reference/rpc/v26/Campaign.md.txt#campaign_bidding_strategy). The
   following `oneof` strategies on `Campaign` can be used for Hotel ads:

   - [`manual_cpc`](https://developers.google.com/google-ads/api/reference/rpc/v26/ManualCpc.md.txt)
   - [`percent_cpc`](https://developers.google.com/google-ads/api/reference/rpc/v26/PercentCpc.md.txt)
   - [`target_roas`](https://developers.google.com/google-ads/api/reference/rpc/v26/TargetRoas.md.txt)

   To enable [Enhanced CPC](https://support.google.com/google-ads/answer/9244171) for a Hotel campaign, set
   `manual_cpc.enhanced_cpc_enabled` or `percent_cpc.enhanced_cpc_enabled` to
   `true`.

   The `commission` strategy is no longer available for Hotel campaigns. For
   details, see [Bidding strategy types](https://developers.google.com/google-ads/api/docs/campaigns/bidding/strategy-types.md.txt).

   > [!NOTE]
   > **Note:** Don't set the [`bidding_strategy`](https://developers.google.com/google-ads/api/reference/rpc/v26/Campaign.md.txt#bidding_strategy) field when using a standard campaign-level strategy, and never set the [`bidding_strategy_type`](https://developers.google.com/google-ads/api/reference/rpc/v26/Campaign.md.txt#bidding_strategy_type) field. The `bidding_strategy_type` field is read-only and is used only for reading the current setting for a campaign.

2. Determine the field name-value pair that you want to use for the chosen
   strategy.

3. Set the chosen strategy field on the `Campaign` object when creating the new
   campaign.

This example demonstrates how to set a `percent_cpc` bidding strategy when
creating a new campaign:


### Java

```java
// Creates the campaign.
Campaign campaign =
    Campaign.newBuilder()
        .setName("Interplanetary Cruise #" + getPrintableDateTime())
        // Configures settings related to hotel campaigns including advertising channel type
        // and hotel setting info.
        .setAdvertisingChannelType(AdvertisingChannelType.HOTEL)
        .setHotelSetting(hotelSettingInfo)
        // Recommendation: Sets the campaign to PAUSED when creating it to prevent
        // the ads from immediately serving. Set to ENABLED once you've added
        // targeting and the ads are ready to serve
        .setStatus(CampaignStatus.PAUSED)
        // Sets the bidding strategy to Percent CPC. Only Manual CPC and Percent CPC can be used
        // for hotel campaigns.
        .setPercentCpc(
            PercentCpc.newBuilder().setCpcBidCeilingMicros(cpcBidCeilingMicroAmount).build())
        // Sets the budget.
        .setCampaignBudget(budgetResourceName)
        // Adds the networkSettings configured above.
        .setNetworkSettings(networkSettings)
        // Declares whether this campaign serves political ads targeting the EU.
        .setContainsEuPoliticalAdvertising(DOES_NOT_CONTAIN_EU_POLITICAL_ADVERTISING)
        .build();
      
```

### C#

```c#
// Create a campaign.
Campaign campaign = new Campaign()
{
    Name = "Interplanetary Cruise Campaign #" + ExampleUtilities.GetRandomString(),

    // Configure settings related to hotel campaigns including advertising channel type
    // and hotel setting info.
    AdvertisingChannelType = AdvertisingChannelType.Hotel,
    HotelSetting = new HotelSettingInfo()
    {
        HotelCenterId = hotelCenterAccountId
    },

    // Recommendation: Set the campaign to PAUSED when creating it to prevent
    // the ads from immediately serving. Set to ENABLED once you've added
    // targeting and the ads are ready to serve.
    Status = CampaignStatus.Paused,

    // Sets the bidding strategy to PercentCpc. Only Manual CPC and Percent CPC can
    // be used for hotel campaigns.
    PercentCpc = new PercentCpc()
    {
        CpcBidCeilingMicros = cpcBidCeilingMicroAmount
    },

    // Set the budget.
    CampaignBudget = budgetResourceName,

    // Configure the campaign network options. Only Google Search is allowed for
    // hotel campaigns.
    NetworkSettings = new NetworkSettings()
    {
        TargetGoogleSearch = true
    },

    // Declare whether or not this campaign contains political ads targeting the EU.
    ContainsEuPoliticalAdvertising = EuPoliticalAdvertisingStatus.DoesNotContainEuPoliticalAdvertising,
};
      
```

### PHP

```php
// Creates a campaign.
$campaign = new Campaign(
    [
    'name' => 'Interplanetary Cruise Campaign #' . Helper::getPrintableDatetime(),
    // Configures settings related to hotel campaigns including advertising channel type
    // and hotel setting info.
    'advertising_channel_type' => AdvertisingChannelType::HOTEL,
    'hotel_setting' => new HotelSettingInfo(['hotel_center_id' => $hotelCenterAccountId]),
    // Recommendation: Set the campaign to PAUSED when creating it to prevent
    // the ads from immediately serving. Set to ENABLED once you've added
    // targeting and the ads are ready to serve.
    'status' => CampaignStatus::PAUSED,
    // Sets the bidding strategy to PercentCpc. Only Manual CPC and Percent CPC can be used
    // for hotel campaigns.
    'percent_cpc' => new PercentCpc(
        [
        'cpc_bid_ceiling_micros' => $cpcBidCeilingMicroAmount
        ]
    ),
    // Sets the budget.
    'campaign_budget' => $budgetResourceName,
    // Configures the campaign network options. Only Google Search is allowed for
    // hotel campaigns.
    'network_settings' => new NetworkSettings(
        [
        'target_google_search' => true,
        ]
    ),
    // Declare whether or not this campaign serves political ads targeting the EU.
    'contains_eu_political_advertising' =>
        EuPoliticalAdvertisingStatus::DOES_NOT_CONTAIN_EU_POLITICAL_ADVERTISING
    ]
);
      
```

### Python

```python
# Create campaign.
campaign_operation: CampaignOperation = client.get_type("CampaignOperation")
campaign: Campaign = campaign_operation.create
campaign.name = f"Interplanetary Cruise Campaign {uuid.uuid4()}"

# Configures settings related to hotel campaigns including advertising
# channel type and hotel setting info.
campaign.advertising_channel_type = (
    client.enums.AdvertisingChannelTypeEnum.HOTEL
)
campaign.hotel_setting.hotel_center_id = hotel_center_account_id

# Recommendation: Set the campaign to PAUSED when creating it to prevent the
# ads from immediately serving. Set to ENABLED once you've added targeting
# and the ads are ready to serve.
campaign.status = client.enums.CampaignStatusEnum.PAUSED

# Set the bidding strategy to PercentCpc. Only Manual CPC and Percent CPC
# can be used for hotel campaigns.
campaign.percent_cpc.cpc_bid_ceiling_micros = cpc_bid_ceiling_micro_amount

# Sets the budget.
campaign.campaign_budget = budget_resource_name

# Set the campaign network options. Only Google Search is allowed for hotel
# campaigns.
campaign.network_settings.target_google_search = True

# Declare whether or not this campaign serves political ads targeting the
# EU. Valid values are:
#   CONTAINS_EU_POLITICAL_ADVERTISING
#   DOES_NOT_CONTAIN_EU_POLITICAL_ADVERTISING
campaign.contains_eu_political_advertising = (
    client.enums.EuPoliticalAdvertisingStatusEnum.DOES_NOT_CONTAIN_EU_POLITICAL_ADVERTISING
)
      
```

### Ruby

```ruby
# Create a campaign.
campaign_operation = client.operation.create_resource.campaign do |c|
  c.name = generate_random_name_field("Interplanetary Cruise Campaign")

  # Configure settings related to hotel campaigns.
  c.advertising_channel_type = :HOTEL
  c.hotel_setting = client.resource.hotel_setting_info do |hsi|
    hsi.hotel_center_id = hotel_center_account_id
  end

  # Recommendation: Set the campaign to PAUSED when creating it to prevent the
  # ads from immediately serving. Set to ENABLED once you've added targeting and
  # the ads are ready to serve.
  c.status = :PAUSED

  # Set the bidding strategy to PercentCpc. Only Manual CPC and Percent CPC can
  # be used for hotel campaigns.
  c.percent_cpc = client.resource.percent_cpc do |pcpc|
    pcpc.cpc_bid_ceiling_micros = cpc_bid_ceiling_micro_amount
  end

  # Set the budget.
  c.campaign_budget = budget_resource

  # Configures the campaign network options. Only Google Search is allowed for
  # hotel campaigns.
  c.network_settings = client.resource.network_settings do |ns|
    ns.target_google_search = true
  end

  # Declare whether or not this campaign serves political ads targeting the EU.
  # Valid values are CONTAINS_EU_POLITICAL_ADVERTISING and
  # DOES_NOT_CONTAIN_EU_POLITICAL_ADVERTISING.
  c.contains_eu_political_advertising = :DOES_NOT_CONTAIN_EU_POLITICAL_ADVERTISING
end
      
```

### Perl

```perl
# Create a hotel campaign.
my $campaign = Google::Ads::GoogleAds::V26::Resources::Campaign->new({
    name => "Interplanetary Cruise Campaign #" . uniqid(),
    # Configure settings related to hotel campaigns including advertising
    # channel type and hotel setting info.
    advertisingChannelType => HOTEL,
    hotelSetting           =>
      Google::Ads::GoogleAds::V26::Resources::HotelSettingInfo->new({
        hotelCenterId => $hotel_center_account_id
      }
      ),
    # Recommendation: Set the campaign to PAUSED when creating it to prevent
    # the ads from immediately serving. Set to ENABLED once you've added
    # targeting and the ads are ready to serve.
    status => Google::Ads::GoogleAds::V26::Enums::CampaignStatusEnum::PAUSED,
    # Set the bidding strategy to PercentCpc. Only Manual CPC and Percent CPC
    # can be used for hotel campaigns.
    percentCpc => Google::Ads::GoogleAds::V26::Common::PercentCpc->new(
      {cpcBidCeilingMicros => $cpc_bid_ceiling_micro_amount}
    ),
    # Declare whether or not this campaign serves political ads targeting the EU.
    # Valid values are CONTAINS_EU_POLITICAL_ADVERTISING and
    # DOES_NOT_CONTAIN_EU_POLITICAL_ADVERTISING.
    containsEuPoliticalAdvertising =>
      DOES_NOT_CONTAIN_EU_POLITICAL_ADVERTISING,
    # Set the budget.
    campaignBudget => $budget_resource_name,
    # Configure the campaign network options. Only Google Search is allowed for
    # hotel campaigns.
    networkSettings =>
      Google::Ads::GoogleAds::V26::Resources::NetworkSettings->new({
        targetGoogleSearch => "true"
      })});
      
```

### curl

> [!NOTE]
> **Note:** While a direct REST code sample for this step isn't provided here, you can achieve this using a manual REST request.   
>
> Refer to the Google Ads API REST interface documentation and the method-specific reference pages. You will need to construct the JSON payload based on the proto definitions.   
>
> Key Resources:
>
> - [Using REST](https://developers.google.com/google-ads/api/rest/overview.md.txt)
> - [REST Interface Structure](https://developers.google.com/google-ads/api/rest/design/overview.md.txt)
> - [JSON Field Mappings](https://developers.google.com/google-ads/api/rest/design/json-mappings.md.txt)
> - Consult the [REST API Reference](https://developers.google.com/google-ads/api/reference/rpc/latest/overview) for the specific service and method.

<br />

## Update a bidding strategy

To update a campaign's bidding strategy, construct a
[`CampaignOperation.update`](https://developers.google.com/google-ads/api/reference/rpc/v26/CampaignOperation.md.txt#update) with a `Campaign`
instance containing the updated strategy field (as described in
[Assign a bidding strategy](https://developers.google.com/google-ads/api/docs/hotel-ads/bidding/assign-strategies.md.txt#assign-strategy)) and an `update_mask` that
includes the path of the strategy field you set (for example, `percent_cpc` or
`target_roas`). Because the strategy fields belong to a single `oneof`, setting
one of them clears the previously set strategy, so the same operation works when
switching from one strategy type to another. For help constructing update
masks, see the field mask utilities in your [client library](https://developers.google.com/google-ads/api/docs/client-libs.md.txt).