制定效果最大化广告系列的预算

与所有其他广告系列一样，效果最大化广告系列也需要预算，但有以下限制：

预算不能共享。
如果使用平均每日预算，预算周期必须为 DAILY。
如果使用广告系列总预算，预算周期必须为 CUSTOM_PERIOD。广告系列总预算仅适用于设置了开始日期和结束日期的广告系列。

平均每日预算最好不低于您为广告系列选择的转化操作的每次转化费用 (CPA) 的 3 倍。一般来说，预算应与您账号中其他效果理想的广告系列大致相当。详细了解如何选择预算。

如果预算相对于 CPA 或每次转化费用过低，您可能会发现磨合期较长，或者在几天内转化次数较少。

Java

/** Creates a MutateOperation that creates a new CampaignBudget. */
private MutateOperation createCampaignBudgetOperation(long customerId) {
  CampaignBudget campaignBudget =
      CampaignBudget.newBuilder()
          .setName("Performance Max campaign budget #" + getPrintableDateTime())
          // The budget period already defaults to DAILY.
          .setAmountMicros(50_000_000)
          .setDeliveryMethod(BudgetDeliveryMethod.STANDARD)
          // A Performance Max campaign cannot use a shared campaign budget.
          .setExplicitlyShared(false)
          // Set a temporary ID in the budget's resource name, so it can be referenced
          // by the campaign in later steps.
          .setResourceName(ResourceNames.campaignBudget(customerId, BUDGET_TEMPORARY_ID))
          .build();

  return MutateOperation.newBuilder()
      .setCampaignBudgetOperation(
          CampaignBudgetOperation.newBuilder().setCreate(campaignBudget).build())
      .build();
}

C#

/// <summary>
/// Creates a MutateOperation that creates a new CampaignBudget.
///
/// A temporary ID will be assigned to this campaign budget so that it can be
/// referenced by other objects being created in the same Mutate request.
/// </summary>
/// <param name="budgetResourceName">The temporary resource name of the budget to
/// create.</param>
/// <returns>A MutateOperation that creates a CampaignBudget.</returns>
private MutateOperation CreateCampaignBudgetOperation(string budgetResourceName)
{
    MutateOperation operation = new MutateOperation
    {
        CampaignBudgetOperation = new CampaignBudgetOperation
        {
            Create = new CampaignBudget
            {
                Name = "Performance Max campaign budget #"
                  + ExampleUtilities.GetRandomString(),

                // The budget period already defaults to DAILY.
                AmountMicros = 50000000,

                // A Performance Max campaign cannot use a shared campaign budget.
                ExplicitlyShared = false,

                // Set a temporary ID in the budget's resource name so it can be referenced
                // by the campaign in later steps.
                ResourceName = budgetResourceName
            }
        }
    };

    return operation;
}

PHP

private static function createCampaignBudgetOperation(int $customerId): MutateOperation
{
    // Creates a mutate operation that creates a campaign budget operation.
    return new MutateOperation([
        'campaign_budget_operation' => new CampaignBudgetOperation([
            'create' => new CampaignBudget([
                // Sets a temporary ID in the budget's resource name so it can be referenced
                // by the campaign in later steps.
                'resource_name' => ResourceNames::forCampaignBudget(
                    $customerId,
                    self::BUDGET_TEMPORARY_ID
                ),
                'name' => 'Performance Max campaign budget #' . Helper::getPrintableDatetime(),
                // The budget period already defaults to DAILY.
                'amount_micros' => 50000000,
                'delivery_method' => BudgetDeliveryMethod::STANDARD,
                // A Performance Max campaign cannot use a shared campaign budget.
                'explicitly_shared' => false
            ])
        ])
    ]);
}