Hi! I'm developing a messaging solution, where I will manage my customers' Whatsapp communications. To achieve that, I'm using Facebook Login to get an access token. With that token, I'm able to fetch bussinesses data, as well as Whatsapp Bussiness Accounts related to those bussinesses, and info of each number.

However, when I try to subscribe an account to a webhook, I get the following error:

{ "error": { "message": "Application does not have permission for this action", "type": "OAuthException", "code": 10, "error_subcode": 2388097, "is_transient": false, "error_user_title": "App no vinculada a un negocio", "error_user_msg": "Tu app no está vinculada a un negocio o el negocio no tiene acceso a la cuenta de WhatsApp Business. Ve a la configuración del negocio de Meta: en la pestaña \"Apps\" en \"Cuenta\", haz clic en \"Agregar\" y selecciona \"Conectar un identificador de la app\" para vincular tu app con el negocio.", "fbtrace_id": "Auc1CZ4kPVzdG2BwWD-CdWF" } }

This is the URL I'm sending the POST request to:

https://graph.facebook.com/v16.0/103926569352137/subscribed_apps?subscribed_fields=messages

Being 103926569352137 the WABA id that I'm trying to subscribe. When I enter bussiness management page, I can see my app linked to this account. The app id is 777405927224344. It's still a test app, since I'm getting ready to send it to review.

I've already revised this post https://developers.facebook.com/support/bugs/247900947738603/?join_id=fb950c39f9f72272c, but I can already see the app linked.

When I use the debug_token endpoint, I can see the following:

{ "data": { "app_id": "777405927224344", "type": "USER", "application": "Dupin Dev", "data_access_expires_at": 1727216313, "expires_at": 0, "is_valid": true, "issued_at": 1719440314, "scopes": [ "email", "pages_show_list", "business_management", "pages_messaging", "instagram_basic", "whatsapp_business_management", "instagram_manage_messages", "pages_manage_metadata", "whatsapp_business_messaging", "public_profile" ], "granular_scopes": [ { "scope": "pages_show_list", "target_ids": [ "113861868237915" ] }, { "scope": "business_management", "target_ids": [ "1001969807901779", "239264988767000" ] }, { "scope": "pages_messaging", "target_ids": [ "113861868237915" ] }, { "scope": "instagram_basic", "target_ids": [ "17841457670809719" ] }, { "scope": "whatsapp_business_management", "target_ids": [ "103926569352137" ] }, { "scope": "instagram_manage_messages", "target_ids": [ "17841457670809719" ] }, { "scope": "pages_manage_metadata", "target_ids": [ "113861868237915" ] }, { "scope": "whatsapp_business_messaging", "target_ids": [ "103926569352137" ] } ], "user_id": "249417978190936" } }

Can anyone tell me what I'm missing? I'm running out of ideas.