SIGN ES - TicketBAI: How to declare disbursements (suplidos)

Disbursements are treated as non-taxable operations. In the API, use system.type = NO_VAT and cause = NON_TAXABLE_4. 

Common case: topping up transport cards (e.g., MUGI)

Example:

{ 
               "text": "MUGI card top-up",
               "quantity": "1",
               "unit_amount": "20.00",
               "full_amount": "20.00",
               "system": {
                   "type": "REGULAR",
                   "category": {
                       "type": "NO_VAT",
                       "cause": "NON_TAXABLE_4"
                   }
               }
           }