Our flow: Make a new purchase -> Confirm it -> Issue an invoice -> Register a payment for the invoice

1) Create a purchase
{
    "method": "EDIT_I06_FULL",ё
    "data": {
        "I06": {
            "I06_KODAS_KS": "1214118432",
            "I06_OP_TIP": "1",
            "I06_DOK_NR": "addstock22",
            "I06_KODAS_XS": "PVM",
            "I07": [
                {
                    "I07_KODAS": 8010101,
                    "I07_KODAS_is": "ADM",
                    "I07_KODAS_OS": "ARF 175",
                    "KIEKIS_U": 100,
                    "I07_KAINA_SU": 1200
                }
            ]
        }
    }
}

2) Confirm the purchase
{
    "method": "EDIT_I06",
    "params": {
        "oper": "P"
    },
    "data": {
        "I06": {
            "I06_KODAS_PO": "010R00000168" // I got the IO6_KODAS_PO value at the step 1)
        }
    }
}

3) Issue an invoice
{
    "method": "EDIT_I06_FULL",
    "data": {
        "I06": {
            "I06_KODAS_KS": "1214118432",
            "I06_OP_TIP": "51",
            "I06_DOK_NR": "OLL004111923",
            "I06_DOK_REG": "OLL004111923",
            "I06_OP_DATA": "2024-10-11",
            "I06_DOK_DATA": "2024-10-11",
            "I06_KODAS_XS": "PVM",
            "I06_ISAF": 0,
            "I06_SUMA": 1200,
            "I07": [
                {
                    "I07_KODAS": 8010101,
                    "I07_KODAS_is": "ADM",
                    "I07_KODAS_OS": "ARF 175",
                    "KIEKIS_U": 100,
                    "I07_KAINA_SU": 1200
                }
            ],
            "I08": [
                {
                    "I08_MOK_D": 25,
                    "I08_MOK_P": 100
                }
            ]
        }
    }
}

4) Add a payment to the invoice

Request:
{
    "method": "EDIT_I13",
    "params": {
        "oper": "I"
    },
    "data": {
        "I13": {
            "I13_KODAS_PO": "010R00000175", // I used the value from the "step 3"
 response
            "I13_KODAS_SS": "LT877044060006783294", // btw, what API method should I call to get "I13_KODAS_SS" value?
            "I13_SUMA": 1200
        }
    }
}


Response:
{
    "id": "8834021421.70f300df.1728641643048",
    "durationMs": 141,
    "errorMessage": "Nepavyko įvykdyti metodo",
    "stackTrace": null,
    "document": null,
    "errors": [
        {
            "data": "{\"I13\":{\"num_row\":\"1\",\"I13_KODAS_PO\":\"010R00000175\",\"I13_KODAS_SS\":\"LT877044060006783294\",\"I13_SUMA\":\"1200.00\"}}",
            "dataErrors": [
                {
                    "tag": "I06_MOK_SUMA",
                    "code": "22012",
                    "message": "Apmokėjimo tipas turi būti mišrus=2"
                },
                {
                    "tag": "I13_KODAS_SS",
                    "code": "22011",
                    "message": "Nerasta sąskaita"
                }
            ]
        }
    ]
}