Campaign Budget Assignment

Page Summary

A budget can be assigned to a new campaign or an existing campaign using the campaign_budget field with the budget's resource name in the CampaignOperation.create or CampaignOperation.update respectively.
When assigning a budget to an existing campaign, the new budget replaces the old one, and it is generally best practice to update an existing budget rather than create a new one to avoid potential overdelivery and ignoring past spend.
Although a campaign must always have a budget, you can effectively dissociate a budget by replacing it with another budget.
You can retrieve all campaigns assigned to a specific budget by querying the campaign resource and filtering by campaign_budget.id.

You can assign a budget to a campaign, dissociate a budget from a campaign, or retrieve the campaigns that are assigned to a specific budget.

Assign a budget to a campaign

After you have created a CampaignBudget with CampaignBudgetService or identified an existing one, you must use its resource_name field value in a subsequent call to CampaignService. If the budget creation operation succeeds, but the campaign assignment fails, you will have an orphaned budget (a budget that is not associated with any campaign). We recommend you either reuse or remove such budgets.

New campaign

For a new campaign, in the CampaignOperation.create, set the campaign_budget field of the Campaign object to a budget resource name, as demonstrated in the code example below.

Java

// Creates the campaign.
Campaign campaign =
    Campaign.newBuilder()
        .setName("Interplanetary Cruise #" + getPrintableDateTime())
        .setAdvertisingChannelType(AdvertisingChannelType.SEARCH)
        // 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
        .setStatus(CampaignStatus.PAUSED)
        // Sets the bidding strategy and budget.
        .setManualCpc(ManualCpc.newBuilder().build())
        .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)
        // Optional: Sets the start & end dates.
        .setStartDate(new DateTime().plusDays(1).toString("yyyyMMdd"))
        .setEndDate(new DateTime().plusDays(30).toString("yyyyMMdd"))
        .build();AddCampaigns.java

C#

// Create the campaign.
Campaign campaign = new Campaign()
{
    Name = "Interplanetary Cruise #" + ExampleUtilities.GetRandomString(),
    AdvertisingChannelType = AdvertisingChannelType.Search,

    // 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,

    // Set the bidding strategy and budget.
    ManualCpc = new ManualCpc(),
    CampaignBudget = budget,

    // Set the campaign network options.
    NetworkSettings = new NetworkSettings
    {
        TargetGoogleSearch = true,
        TargetSearchNetwork = true,
        // Enable Display Expansion on Search campaigns. See
        // https://support.google.com/google-ads/answer/7193800 to learn more.
        TargetContentNetwork = true,
        TargetPartnerSearchNetwork = false
    },

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

    // Optional: Set the start date.
    StartDate = DateTime.Now.AddDays(1).ToString("yyyyMMdd"),

    // Optional: Set the end date.
    EndDate = DateTime.Now.AddYears(1).ToString("yyyyMMdd"),
};AddCampaigns.cs

PHP

$campaign = new Campaign([
    'name' => 'Interplanetary Cruise #' . Helper::getPrintableDatetime(),
    'advertising_channel_type' => AdvertisingChannelType::SEARCH,
    // 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 and budget.
    'manual_cpc' => new ManualCpc(),
    'campaign_budget' => $budgetResourceName,
    // Adds the network settings configured above.
    'network_settings' => $networkSettings,
    // Declare whether or not this campaign serves political ads targeting the EU.
    'contains_eu_political_advertising' =>
        EuPoliticalAdvertisingStatus::DOES_NOT_CONTAIN_EU_POLITICAL_ADVERTISING
    // Optional: Sets the start and end dates.
    'start_date' => date('Ymd', strtotime('+1 day')),
    'end_date' => date('Ymd', strtotime('+1 month'))
]);AddCampaigns.php

Python

# Create campaign.
campaign_operation: CampaignOperation = client.get_type("CampaignOperation")
campaign: Campaign = campaign_operation.create
campaign.name = f"Interplanetary Cruise {uuid.uuid4()}"
campaign.advertising_channel_type = (
    client.enums.AdvertisingChannelTypeEnum.SEARCH
)

# 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 and budget.
campaign.manual_cpc = client.get_type("ManualCpc")
campaign.campaign_budget = campaign_budget_response.results[0].resource_name

# Set the campaign network options.
campaign.network_settings.target_google_search = True
campaign.network_settings.target_search_network = True
campaign.network_settings.target_partner_search_network = False
# Enable Display Expansion on Search campaigns. For more details see:
# https://support.google.com/google-ads/answer/7193800
campaign.network_settings.target_content_network = 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
)

# Optional: Set the start date.
start_time: datetime.date = datetime.date.today() + datetime.timedelta(
    days=1
)
campaign.start_date = datetime.date.strftime(start_time, _DATE_FORMAT)

# Optional: Set the end date.
end_time: datetime.date = start_time + datetime.timedelta(weeks=4)
campaign.end_date = datetime.date.strftime(end_time, _DATE_FORMAT)add_campaigns.py

Ruby

# Create campaign.
campaign = client.resource.campaign do |c|
  c.name = "Interplanetary Cruise #{(Time.new.to_f * 1000).to_i}"
  c.advertising_channel_type = :SEARCH

  # 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 and budget.
  c.manual_cpc = client.resource.manual_cpc
  c.campaign_budget = return_budget.results.first.resource_name

  # Set the campaign network options.
  c.network_settings = client.resource.network_settings do |ns|
    ns.target_google_search = true
    ns.target_search_network = true
    # Enable Display Expansion on Search campaigns. See
    # https://support.google.com/google-ads/answer/7193800 to learn more.
    ns.target_content_network = true
    ns.target_partner_search_network = false
  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

  # Optional: Set the start date.
  c.start_date = DateTime.parse((Date.today + 1).to_s).strftime('%Y%m%d')

  # Optional: Set the end date.
  c.end_date = DateTime.parse((Date.today.next_year).to_s).strftime('%Y%m%d')
endadd_campaigns.rb

Perl

# Create a campaign.
my $campaign = Google::Ads::GoogleAds::V22::Resources::Campaign->new({
    name                   => "Interplanetary Cruise #" . uniqid(),
    advertisingChannelType => SEARCH,
    # Recommendation: Set the campaign to PAUSED when creating it to stop
    # the ads from immediately serving. Set to ENABLED once you've added
    # targeting and the ads are ready to serve.
    status => PAUSED,
    # Set the bidding strategy and budget.
    manualCpc      => Google::Ads::GoogleAds::V22::Common::ManualCpc->new(),
    campaignBudget => $campaign_budgets_response->{results}[0]{resourceName},
    # Set the campaign network options.
    networkSettings =>
      Google::Ads::GoogleAds::V22::Resources::NetworkSettings->new({
        targetGoogleSearch  => "true",
        targetSearchNetwork => "true",
        # Enable Display Expansion on Search campaigns. See
        # https://support.google.com/google-ads/answer/7193800 to learn more.
        targetContentNetwork       => "true",
        targetPartnerSearchNetwork => "false"
      }
      ),
    # 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,
    # Optional: Set the start date. The campaign starts tomorrow.
    startDate => strftime("%Y%m%d", localtime(time + 60 * 60 * 24)),
    # Optional: Set the end date. The campaign runs for 30 days.
    endDate => strftime("%Y%m%d", localtime(time + 60 * 60 * 24 * 30)),
  });add_campaigns.pl

Existing campaign

To replace the budget of an existing campaign, in a CampaignOperation.update, set the campaign_budget field of the Campaign object to the resource name of an existing budget (along with any other campaign fields that you might want to set). Note that this will replace the existing budget assigned to the campaign with the one specified by the campaign_budget field, since a campaign can be associated with only one budget at a time.

Dissociate a budget from a campaign

A campaign must always be associated with a budget. You can remove a budget from a campaign by changing the budget associated with the campaign, thereby replacing it with another budget. To identify campaigns using a particular budget, continue to the next section.

Retrieve campaigns assigned to a budget

Obtaining the list of campaigns that use the same budget can be helpful in balancing budget utilization. The following GAQL query will return all campaigns for the specified budget ID:

SELECT campaign.id
FROM campaign
WHERE campaign_budget.id = campaign_budget_id

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Last updated 2025-12-03 UTC.