Detailed Description Hello, A few of our merchants have already opted in feature and we are trying to create sponsored message ads for them through API calls which uses the new parameters: campaign objective: OUTCOME_ENGAGEMENT ad set optimization goal: MESSAGING_PURCHASE_CONVERSION

Actual behavior

Creating the campaign is going well but the ad set creation returns the following error:

When we are trying to change the optimization goal of an adset as follows:

{
    "error": {
        "message": "Invalid parameter",
        "type": "OAuthException",
        "code": 100,
        "error_data": "{\"blame_field_specs\":[[\"optimization_goal\"]]}",
        "error_subcode": 2490408,
        "is_transient": false,
        "error_user_title": "Optimization Goal Isn't Available",
        "error_user_msg": "You can't use the selected optimization goal for your campaign objective. Please select a different goal, or edit your campaign.",
        "fbtrace_id": "AdB-i6NZKHhusDN3DiRSkIH"
    }
}

** Json Request

{
    "name": "new Ads- Adset",
    "lifetime_budget": 800000,
    "start_time": "2024-12-26T19:36:22",
    "end_time": "2024-12-27T20:36:22",
    "campaign_id": "120211609327530726",
    "billing_event": "IMPRESSIONS",
    "optimization_goal": "MESSAGING_PURCHASE_CONVERSION",
    "bid_strategy": "LOWEST_COST_WITHOUT_CAP",
    "destination_type": "MESSENGER",
    "campaign_creation_source": "click_quick_create",
    "status": "ACTIVE",
    "targeting": {
        "age_min": 19,
        "age_max": 65,
        "genders": [],
        "geo_locations": {
            "countries": [
                "VN"
            ],
            "location_types": [
                "home",
                "recent"
            ]
        },
        "brand_safety_content_filter_levels": [
            "FACEBOOK_STANDARD",
            "AN_STANDARD",
            "FEED_RELAXED"
        ],
        "targeting_automation": {
            "advantage_audience": 1
        }
    },
    "promoted_object": {
        "page_id": "102492515895623"
    }
}