Update Meta Ad Set

User wants to edit an existing Meta ad set’s targeting, budget, bid, placements, schedule, or optimization settings.

IMPORTANT: This tool modifies REAL ad sets in Meta Ads Manager. Changes take effect immediately.

This is the primary tool for:

• Changing audience targeting (age, gender, interests, locations)
• Excluding placements (e.g., remove Audience Network)
• Adjusting budgets at the ad set level
• Changing bid amounts
• Pausing/resuming specific ad sets
• Modifying optimization goals

Returns:

• Confirmation of updates applied
• Summary of all changes made
• Ads Manager URL for the ad set

When to use this tool:

• “Change the targeting on my ad set”
• “Exclude Audience Network from placements”
• “Update the budget on this ad set to $50/day”
• “Pause this ad set”
• “Change the age range to 25-45”
• “Add interest targeting for fitness”
• “Exclude custom audience from this ad set”
• “Change bid to $5”
• “Update the optimization goal”

Parameters:

• ad_set_id: The Meta Ad Set ID to update (required)
• status: ACTIVE, PAUSED, DELETED, ARCHIVED (optional)
• name: New ad set name (optional)
• daily_budget: New daily budget in USD (optional, min $1). DO NOT use for CBO campaigns.
• lifetime_budget: New lifetime budget in USD (optional). DO NOT use for CBO campaigns.
• daily_min_spend_target: CBO only — minimum daily spend for this ad set (use INSTEAD of daily_budget)
• daily_spend_cap: CBO only — maximum daily spend cap for this ad set (use INSTEAD of daily_budget)
• lifetime_min_spend_target: CBO only — minimum lifetime spend (for lifetime budget CBO)
• lifetime_spend_cap: CBO only — maximum lifetime spend cap (for lifetime budget CBO)
• bid_amount: New bid amount in USD (optional)
• targeting: New targeting spec as JSON (optional) — for placements, audiences, demographics
• start_time: New start time ISO format (optional)
• end_time: New end time ISO format (optional)
• optimization_goal: REACH, LINK_CLICKS, LANDING_PAGE_VIEWS, OFFSITE_CONVERSIONS, VALUE, etc. (optional)

CBO (Advantage Campaign Budget) campaigns: For ad sets under CBO campaigns, do NOT set daily_budget or lifetime_budget. Use daily_min_spend_target / daily_spend_cap to control spend distribution. Setting daily_budget on a CBO ad set will cause Meta to reject with an error.

At least one update field must be provided.

Targeting Spec Examples:

Exclude Audience Network:

{
  "publisher_platforms": ["facebook", "instagram"],
  "facebook_positions": ["feed", "stories", "reels"],
  "instagram_positions": ["stream", "story", "reels"]
}

Change age and gender:

{
  "age_min": 25,
  "age_max": 45,
  "genders": [1]
}

(genders: 1=male, 2=female, omit for all)

Add interest targeting:

{
  "flexible_spec": [{"interests": [{"id": "6003139266461", "name": "Fitness"}]}]
}

Exclude custom audience:

{
  "excluded_custom_audiences": [{"id": "AUDIENCE_ID"}]
}

Execution time: 2-5 seconds Modifies: Real ad set in Meta Ads

Workflow:

1. Use list_meta_ad_sets or get_meta_campaign_details to find the ad set ID
2. Use update_meta_ad_set with the changes you want to make
3. Verify changes in Ads Manager