Issue a credit note referencing multiple invoices
If you need to issue a credit note that applies to multiple invoices, you must include the reference_transaction_id as part of the line item that shows the adjusted values related to a previous invoice.
In this scenario, you should not send the reference_transaction_id at the invoice level, but only within the line items. Each item refers to a different invoice.
Adjustment amounts must be negative values.
POST https://api.fonoa.com/v1/transactions/adjustment
{
"country_code": "PT",
"language_code": "PT",
"currency_code": "EUR",
"transaction_date": "2024-03-11T01:00:00+00:00",
"transaction_id": "Transaction107",
"items": [
{
"type": "GOODS",
"description": "Product B",
"code": "SKU3",
"ean": "2",
"number": 1,
"unit": "pcs",
"name": "Delivery fee",
"quantity": 1,
"unit_price": -1000,
"reference_transaction_id": "Reference105",
"tax_breakdown": [
{
"rate": 23,
"amount": -230,
"regime": "IVA",
"type": "PT"
}
]
},
{
"type": "GOODS",
"description": "Product B",
"code": "SKU3",
"ean": "2",
"number": 2,
"unit": "pcs",
"name": "Delivery fee",
"quantity": 1,
"unit_price": -1000,
"reference_transaction_id": "Reference106",
"tax_breakdown": [
{
"rate": 23,
"amount": -230,
"regime": "IVA",
"type": "PT"
}
],
}
],
"customer": {
"legal_name": "Futuro Digital Lda",
"address": {
"country_code": "PT",
"city": "Lisboa",
"postal_code": "1000-046",
"address_line_1": "R. António Pereira Carrilho 29A"
},
"tax_information": {
"tax_number": "574992960"
},
"type": "BUSINESS"
},
"supplier": {
"id": "8db9a4a4aaec4c969a402692eb33035c"
},
"type": "FULL",
"total_amount": -2460,
"total_net_amount": -2000,
"total_tax_amount": -460
}