[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-06 UTC."],[[["\u003cp\u003eStartDateTimeType specifies how an entity with a start date and time field, such as a LineItem or LineItemCreativeAssociation, should begin its operation.\u003c/p\u003e\n"],["\u003cp\u003eIt offers three main options: using a specific startDateTime, starting immediately, or starting one hour from the current time.\u003c/p\u003e\n"],["\u003cp\u003eWhen "immediately" or "one hour from now" is selected, the provided startDateTime is ignored and automatically set to the respective time, with startDateTimeType internally changed to USE_START_DATE_TIME.\u003c/p\u003e\n"],["\u003cp\u003eThe UNKNOWN value is returned if the requested API version doesn't expose the actual value.\u003c/p\u003e\n"]]],["The core content details the `StartDateTimeType` enumeration, which defines how an entity's start time is handled within the Ad Manager API. Entities like `LineItem` use this. Key actions include using a specified start date/time (`USE_START_DATE_TIME`), starting immediately (`IMMEDIATELY`), or starting one hour from the current time (`ONE_HOUR_FROM_NOW`). The enumeration also includes an `UNKNOWN` value for cases where the actual value is not accessible. The services involved are `AdRuleService`, `ForecastService`, `LineItemCreativeAssociationService`, `LineItemService`, and `LiveStreamEventService`.\n"],null,["# enum StartDateTimeType (v202408)\n\n**Service** \n[AdRuleService](/ad-manager/api/reference/v202408/AdRuleService.StartDateTimeType) **ForecastService** [LineItemCreativeAssociationService](/ad-manager/api/reference/v202408/LineItemCreativeAssociationService.StartDateTimeType) [LineItemService](/ad-manager/api/reference/v202408/LineItemService.StartDateTimeType) [LiveStreamEventService](/ad-manager/api/reference/v202408/LiveStreamEventService.StartDateTimeType) **Dependencies** \n[LineItemSummary](/ad-manager/api/reference/v202408/ForecastService.LineItemSummary) \n▼\n**StartDateTimeType**\n\nSpecifies the start type to use for an entity with a start date time field.\nFor example, a [LineItem](/ad-manager/api/reference/v202408/ForecastService.LineItem) or [LineItemCreativeAssociation](/ad-manager/api/reference/v202408/LineItemCreativeAssociationService.LineItemCreativeAssociation).\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202408`\n\n| Enumeration | Description |\n|-----------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `USE_START_DATE_TIME` | Use the value in [startDateTime](#startDateTime). |\n| `IMMEDIATELY` | The entity will start serving immediately. [startDateTime](#startDateTime) in the request is ignored and will be set to the current time. Additionally, [startDateTimeType](#startDateTimeType) will be set to [StartDateTimeType.USE_START_DATE_TIME](/ad-manager/api/reference/v202408/ForecastService.StartDateTimeType#USE_START_DATE_TIME). |\n| `ONE_HOUR_FROM_NOW` | The entity will start serving one hour from now. [startDateTime](#startDateTime) in the request is ignored and will be set to one hour from the current time. Additionally, [startDateTimeType](#startDateTimeType) will be set to [StartDateTimeType.USE_START_DATE_TIME](/ad-manager/api/reference/v202408/ForecastService.StartDateTimeType#USE_START_DATE_TIME). |\n| `UNKNOWN` | The value returned if the actual value is not exposed by the requested API version. |"]]