Hi,

When submitting a Lead event to Graph API I get Unsupported post request as a response. - I've generated new API tokens, which result in the same error message.

• The only error related message I can see on my ad platform is the attached image, https://i.gyazo.com/e52abf9b42ad308f26c646520f833e13.png which links to https://www.facebook.com/business/help/124742407297678.

Has anyone experienced this before, or have an idea what actions I can take?

POST https://graph.facebook.com/v21.0/DATA_SOURCE_ID/events?access_token=ACCESS_TOKEN

{
    "data": [
        {
            "event_name": "Lead",
            "event_time": 1728288407,
            "action_source": "other",
            "user_data": {
                "external_id": "EXTERNAL_ID",
                "client_ip_address": "IP_ADDRESS",
                "fbc": "FBC_VALUE",
                "client_user_agent": "Mozilla\/5.0 (Linux; Android 13; 2107113SG Build\/TKQ1.220829.002; wv) AppleWebKit\/537.36 (KHTML, like Gecko) Version\/4.0 Chrome\/129.0.6668.70 Mobile Safari\/537.36 Instagram 351.1.0.42.106 Android (33\/13; 440dpi; 1080x2186; Xiaomi; 2107113SG; vili; qcom; sv"
            },
            "custom_data": []
        }
    ]
}

RESPONSE

{
    "error": {
        "message": "Unsupported post request. Object with ID 'DATA_SOURCE_ID' does not exist, cannot be loaded due to missing permissions, or does not support this operation. Please read the Graph API documentation at https://developers.facebook.com/docs/graph-api",
        "type": "GraphMethodException",
        "code": 100,
        "error_subcode": 33,
        "fbtrace_id": "TRACE_ID"
    }
}