P21 Transaction API - Adding remittance to existing order

Prophet 21
, , ,
1

Hello.

I am trying to add a remittance (payment) to an existing order using P21’s Transaction API.

Using the UI, this is done by going to the Order Entry section under the Remittances tab > Add Payment Details.
When I try to add the payment using the Transaction API, it fails with these messages:

"Messages": [
        "Transaction 1:: General Exception: Column is disabled: payment_type_id",
        "Transaction 1: TP_REMITTANCES.remittances: Error processing data element: remittances : Column is disabled: payment_type_id"
    ],

Here is the call I am making with sample data:

{
    "Name": "Order",
    "UseCodeValues": true,
    "IgnoreDisabled": false,
    "Transactions": [
        {
            "Status": "New",
            "DataElements": [
                {
                    "Name": "TABPAGE_1.order",
                    "Type": "Form",
                    "Keys": [
                        "order_no"
                    ],
                    "Rows": [
                        {
                            "Edits": [
                                {
                                    "Name": "order_no",
                                    "Value": "1019425"
                                }
                            ]
                        }
                    ]
                },
                {
                    "Name": "TP_REMITTANCES.remittances",
                    "Type": "Form",
                    "Keys": [],
                    "Rows": [
                        {
                            "Edits": [
                                {
                                    "Name": "payment_type_id",
                                    "Value": "MasterCard"
                                },
                                {
                                    "Name": "payment_amount",
                                    "Value": "21.0000"
                                },
                                {
                                    "Name": "payment_desc",
                                    "Value": "TEST ORDER PAYMENT"
                                }
                            ]
                        }
                    ]
                }
            ]
        }
    ]
}