Update Adset Schedule - Markifact

Updates the start_time and/or end_time (schedule) of a Meta Ads ad set. Meta keeps schedules on ad sets only; a campaign’s dates are the span of its ad sets, so to extend or shorten a campaign, update each of its ad sets with this operation.


App	Meta Ads
Operation ID	`meta_ads_update_adset_schedule`
Type	Action
Connection	`meta_ads` (required)
Credits per run	1
Agent / MCP tool	Yes
Requires approval	Yes (write operation)

Inputs

Field	Type	Required	Default	Description
`account`	DynamicAccount	Yes	-	Select Meta Ads account, ask the user for it if not provided
`adset_id`	string or SelectItem	Yes	-	The ad set to update the schedule for
`start_time`	integer or string	No	-	New start time: Unix seconds, YYYY-MM-DD, or an ISO datetime such as 2026-10-01 09:00 (UTC). Leave empty to keep current start time. Only editable while the ad set has not started delivering yet.
`end_time`	integer or string	No	-	New end time: Unix seconds, YYYY-MM-DD, or an ISO datetime such as 2026-10-31 23:59 (UTC). Leave empty to keep current end time. Required for ad sets using a lifetime budget. Must be after start_time. Meta keeps schedules on ad sets only: a campaign’s end date is the latest end_time of its ad sets, so to extend a campaign update every ad set in it.
`clear_end_time`	boolean	No	`False`	Set to true to remove the end time entirely (run the ad set with no end date). Only allowed for ad sets on a daily budget; lifetime-budget ad sets require an end_time. When true, end_time is ignored.

SelectItem

Field	Type	Required	Default	Description
`value`	string	Yes	-	The value of the selectable item.
`label`	string	Yes	-	The label of the selectable item, used for display purposes. If not provided, defaults to the value.

Output

Type: str Returns success message confirming ad set schedule update.