API - where to download FACe Spain application response from?

Dear b2brouter,

With regard to FACe B2G integration after sending an invoice one of your advised ways to track it is to use the "Get an invoice" endpoint.

My question is that if I detect based on the state that the buyer party responded, where can I download the application response from? My process needs that xml file.

The download_legal_url attribute in the response according to the API docs is "The attachment of the original invoice if sent." According to some test invoices it can also be the signed invoice, not just the original. But I don't assume this will point to the application response once it becomes available.

Could you help me with this?

Kind Regards,
Tamás