Adjusting invoices

The Invoice _execute endpoint allows you to perform various adjustment and reversal operations on invoices. This guide provides working JSON examples for the most commonly used operations.

POST https://{{URL}}/api/Invoice/_execute

All operations use the GenericExecuteRequest wrapper. The key properties are:

OperationName — the name of the operation to execute
EntityTypeName — always "Invoice"
Parameters — an array containing the operation-specific data object
ParameterTypeName — an array of the .NET type names for each parameter

Writing off an invoice

Writes off the remaining balance of an invoice. This creates a write-off transaction that zeroes out the balance.

InvoiceActionWriteOffData properties:

InvoiceId (string, required) — The invoice ID to write off
AdjustmentDate (datetime, required) — The date to record the write-off
AdjustmentReason (string, optional) — Reason for the write-off

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "ProcessWriteOff",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      {
        "$type": "Asi.Soa.Commerce.DataContracts.InvoiceActionWriteOffData, Asi.Contracts",
        "InvoiceId": "8158",
        "AdjustmentDate": "2026-04-23T00:00:00",
        "AdjustmentReason": "Unable to collect"
      }
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "Asi.Soa.Commerce.DataContracts.InvoiceActionWriteOffData, Asi.Contracts"
    ]
  },
  "UseJson": false
}

Recording a refund

Records a refund against an invoice that has already been paid.

InvoiceActionRecordRefundData properties:

InvoiceId (string, required) — The invoice ID
AdjustmentDate (datetime, required) — The date to record the refund
AdjustmentReason (string, optional) — Reason for the refund
PaymentMethodId (string, required) — Payment method used for the refund (e.g., "CASH", "CHECK", "VISA")
PaymentMethodDescription (string, optional) — Check number or last 4 digits of credit card
RefundAmount (decimal, required) — The amount to refund
OriginalPaymentId (int, optional) — Payment ID of the original payment, if known

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "ProcessRecordRefund",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      {
        "$type": "Asi.Soa.Commerce.DataContracts.InvoiceActionRecordRefundData, Asi.Contracts",
        "InvoiceId": "8158",
        "AdjustmentDate": "2026-04-23T00:00:00",
        "AdjustmentReason": "Customer requested refund",
        "PaymentMethodId": "CHECK",
        "PaymentMethodDescription": "10542",
        "RefundAmount": 95.00,
        "OriginalPaymentId": 0
      }
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "Asi.Soa.Commerce.DataContracts.InvoiceActionRecordRefundData, Asi.Contracts"
    ]
  },
  "UseJson": false
}

Adjusting a cash invoice

Adjusts a persisted cash invoice by changing line item prices, or removing lines entirely.

InvoiceActionCashAdjustmentData properties:

InvoiceId (string, required) — The invoice ID
AdjustmentDate (datetime, required) — The date to record the adjustment
AdjustmentReason (string, optional) — Reason for the adjustment
DeliveryId (string, optional) — The delivery ID
InvoiceLineAdjustments (collection, required) — Collection of PartialInvoiceLine

PartialInvoiceLine properties:

ProductCode (string, required) — Product code of the line being adjusted
IsRemoved (bool, optional) — Set to true to remove the line entirely
OriginalUnitPrice (decimal, optional) — The original unit price
NewUnitPrice (decimal, optional) — The new unit price
AdjustmentPrice (decimal, optional) — Signed adjustment value. Use this or OriginalUnitPrice/NewUnitPrice, not both.

📘
AdjustmentPrice vs OriginalUnitPrice/NewUnitPrice
You can adjust a line in two ways:

Set OriginalUnitPrice and NewUnitPrice to specify the old and new price

Set AdjustmentPrice to a signed decimal (e.g., -20.00 to reduce by $20)

When AdjustmentPrice is provided, OriginalUnitPrice and NewUnitPrice are ignored.

Example: Adjust the price of a line item

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "ProcessCashAdjustment",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      {
        "$type": "Asi.Soa.Commerce.DataContracts.InvoiceActionCashAdjustmentData, Asi.Contracts",
        "InvoiceId": "8158",
        "AdjustmentDate": "2026-04-23T00:00:00",
        "AdjustmentReason": "Price correction",
        "DeliveryId": "",
        "InvoiceLineAdjustments": [
          {
            "ProductCode": "JOUR",
            "IsRemoved": false,
            "OriginalUnitPrice": 95.00,
            "NewUnitPrice": 75.00
          }
        ]
      }
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "Asi.Soa.Commerce.DataContracts.InvoiceActionCashAdjustmentData, Asi.Contracts"
    ]
  },
  "UseJson": false
}

Example: Remove a line from a cash invoice

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "ProcessCashAdjustment",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      {
        "$type": "Asi.Soa.Commerce.DataContracts.InvoiceActionCashAdjustmentData, Asi.Contracts",
        "InvoiceId": "8158",
        "AdjustmentDate": "2026-04-23T00:00:00",
        "AdjustmentReason": "Remove subscription",
        "DeliveryId": "",
        "InvoiceLineAdjustments": [
          {
            "ProductCode": "INSIDMAG",
            "IsRemoved": true
          }
        ]
      }
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "Asi.Soa.Commerce.DataContracts.InvoiceActionCashAdjustmentData, Asi.Contracts"
    ]
  },
  "UseJson": false
}

Reversing a cash invoice

Fully reverses a persisted cash invoice.

InvoiceActionCashReversalData properties:

InvoiceId (string, required) — The invoice ID to reverse
ShipToPartyId (string, optional) — Party ID of one membership to reverse. Omit to reverse all lines.
BillDate (datetime, optional) — Bill date for the subscription term to be reversed
AdjustmentDate (datetime, required) — The date to record the reversal
AdjustmentReason (string, optional) — Reason for the reversal
DoNotCancelMembership (bool, optional) — Set to true if the invoice only needs reversal (membership should not be cancelled)

📘
Checking eligibility
You can first call CanCashInvoiceBeReversed (shown below) to verify the invoice is eligible for reversal before attempting it.

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "ProcessCashReversal",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      {
        "$type": "Asi.Soa.Commerce.DataContracts.InvoiceActionCashReversalData, Asi.Contracts",
        "InvoiceId": "8158",
        "AdjustmentDate": "2026-04-23T00:00:00",
        "AdjustmentReason": "Billing error - reversing invoice",
        "DoNotCancelMembership": true
      }
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "Asi.Soa.Commerce.DataContracts.InvoiceActionCashReversalData, Asi.Contracts"
    ]
  },
  "UseJson": false
}

Reversing an accrual invoice

Reverses an accrual (traditional) dues invoice.

InvoiceActionDuesReversalData properties:

InvoiceId (string, required) — The invoice ID to reverse
AdjustmentDate (datetime, required) — The date to record the reversal
AdjustmentReason (string, optional) — Reason for the reversal
DeliveryId (string, optional) — The delivery ID
DoNotCancelMembership (bool, optional) — Set to true for reversal only (membership should not be cancelled)

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "ProcessAccrualReversal",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      {
        "$type": "Asi.Soa.Commerce.DataContracts.InvoiceActionDuesReversalData, Asi.Contracts",
        "InvoiceId": "8158",
        "AdjustmentDate": "2026-04-23T00:00:00",
        "AdjustmentReason": "Reversing incorrect billing",
        "DoNotCancelMembership": true
      }
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "Asi.Soa.Commerce.DataContracts.InvoiceActionDuesReversalData, Asi.Contracts"
    ]
  },
  "UseJson": false
}

Adjusting an accrual invoice

Adjusts an accrual dues invoice by changing line item prices or removing lines.

InvoiceActionAccrualAdjustmentData properties:

InvoiceId (string, required) — The invoice ID
AdjustmentDate (datetime, required) — The date to record the adjustment
AdjustmentReason (string, optional) — Reason for the adjustment
DeliveryId (string, optional) — The delivery ID
InvoiceLineAdjustments (collection, required) — Collection of PartialInvoiceLine

PartialInvoiceLine properties (each item in InvoiceLineAdjustments):

ProductCode (string, required) — Product code
IsRemoved (bool, optional) — Set to true to remove the line entirely
OriginalUnitPrice (decimal, optional) — Original unit price
NewUnitPrice (decimal, optional) — New unit price (for price adjustments)
AdjustmentPrice (decimal, optional) — Signed adjustment value. Use this or OriginalUnitPrice/NewUnitPrice, not both.

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "ProcessAccrualAdjustment",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      {
        "$type": "Asi.Soa.Commerce.DataContracts.InvoiceActionAccrualAdjustmentData, Asi.Contracts",
        "InvoiceId": "8158",
        "AdjustmentDate": "2026-04-23T00:00:00",
        "AdjustmentReason": "Price adjustment for renewal",
        "DeliveryId": "",
        "InvoiceLineAdjustments": [
          {
            "ProductCode": "DUES",
            "OriginalUnitPrice": 250.00,
            "NewUnitPrice": 200.00
          }
        ]
      }
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "Asi.Soa.Commerce.DataContracts.InvoiceActionAccrualAdjustmentData, Asi.Contracts"
    ]
  },
  "UseJson": false
}

Reversing a commerce order invoice

Reverses a commerce order invoice (e.g., product sales). This operation can optionally reverse shipping, handling, and inventory.

InvoiceActionOrderReversalData properties:

InvoiceId (string, required) — The invoice ID to reverse
AdjustmentDate (datetime, required) — The date to record the reversal
AdjustmentReason (string, optional) — Reason for the reversal
ReverseShipping (bool, optional) — Whether to reverse shipping charges
ReverseHandling (bool, optional) — Whether to reverse handling charges
AffectsInventory (bool, optional) — Whether the reversal should update inventory

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "ProcessOrderReversal",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      {
        "$type": "Asi.Soa.Commerce.DataContracts.InvoiceActionOrderReversalData, Asi.Contracts",
        "InvoiceId": "8158",
        "AdjustmentDate": "2026-04-23T00:00:00",
        "AdjustmentReason": "Order returned by customer",
        "ReverseShipping": true,
        "ReverseHandling": true,
        "AffectsInventory": true
      }
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "Asi.Soa.Commerce.DataContracts.InvoiceActionOrderReversalData, Asi.Contracts"
    ]
  },
  "UseJson": false
}

Adjusting a commerce order invoice

Adjusts a commerce order invoice — change prices, quantities, or shipping/handling amounts.

InvoiceActionOrderAdjustmentData properties:

InvoiceId (string, required) — The invoice ID
AdjustmentDate (datetime, required) — The date to record the adjustment
AdjustmentReason (string, optional) — Reason for the adjustment
OrderLineAdjustments (collection, required) — Collection of PartialOrderLine
OriginalShipping (decimal, optional) — Original shipping amount
NewShipping (decimal, optional) — New shipping amount
OriginalHandling (decimal, optional) — Original handling amount
NewHandling (decimal, optional) — New handling amount
ShipMethodId (string, optional) — Shipping method ID
AffectsInventory (bool, optional) — Whether the adjustment updates inventory

PartialOrderLine properties:

ProductCode (string, required) — Product code
ProductName (string, optional) — Display name of the product
OriginalQuantity (int, optional) — Original quantity
NewQuantity (int, optional) — New quantity
OriginalUnitPrice (decimal, optional) — Original unit price
NewUnitPrice (decimal, optional) — New unit price (required unless component-priced kit)
IsNewLine (bool, optional) — Whether this is a new line being added

Example: Adjust a line item price and reduce shipping

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "ProcessOrderAdjustment",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      {
        "$type": "Asi.Soa.Commerce.DataContracts.InvoiceActionOrderAdjustmentData, Asi.Contracts",
        "InvoiceId": "8158",
        "AdjustmentDate": "2026-04-23T00:00:00",
        "AdjustmentReason": "Discount applied after purchase",
        "OriginalShipping": 15.00,
        "NewShipping": 10.00,
        "OriginalHandling": 5.00,
        "NewHandling": 5.00,
        "AffectsInventory": false,
        "OrderLineAdjustments": [
          {
            "ProductCode": "BOOK001",
            "OriginalQuantity": 2,
            "NewQuantity": 2,
            "OriginalUnitPrice": 49.95,
            "NewUnitPrice": 39.95,
            "IsNewLine": false
          }
        ]
      }
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "Asi.Soa.Commerce.DataContracts.InvoiceActionOrderAdjustmentData, Asi.Contracts"
    ]
  },
  "UseJson": false
}

Reversing a fundraising invoice

Reverses a fundraising or pledge invoice.

InvoiceActionFundraisingAdjustmentData properties:

InvoiceId (string, required) — The invoice ID
ScheduledPaymentId (string, optional) — Specific scheduled payment ID to reverse
AdjustmentDate (datetime, required) — The date to record the reversal
AdjustmentReason (string, optional) — Reason for the reversal
DeliveryId (string, optional) — The delivery ID
ReverseAll (bool, optional) — Whether this is a reversal of all scheduled payments or a single one

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "ProcessFundraisingReversal",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      {
        "$type": "Asi.Soa.Commerce.DataContracts.InvoiceActionFundraisingAdjustmentData, Asi.Contracts",
        "InvoiceId": "8200",
        "AdjustmentDate": "2026-04-23T00:00:00",
        "AdjustmentReason": "Pledge cancelled by donor",
        "ReverseAll": true
      }
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "Asi.Soa.Commerce.DataContracts.InvoiceActionFundraisingAdjustmentData, Asi.Contracts"
    ]
  },
  "UseJson": false
}

Adjusting a fundraising invoice

Adjusts a fundraising invoice. Uses the same InvoiceActionFundraisingAdjustmentData data contract as the reversal.

Additional properties for adjustments:

Adjustments (collection, optional) — Collection of ScheduledPaymentAdjustmentData for adjusting installment amounts
DueDateAdjustments (dictionary, optional) — Dictionary of scheduled payment ID to new due date for adjusting due dates

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "ProcessFundraisingAdjustment",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      {
        "$type": "Asi.Soa.Commerce.DataContracts.InvoiceActionFundraisingAdjustmentData, Asi.Contracts",
        "InvoiceId": "8200",
        "AdjustmentDate": "2026-04-23T00:00:00",
        "AdjustmentReason": "Adjusted pledge amount"
      }
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "Asi.Soa.Commerce.DataContracts.InvoiceActionFundraisingAdjustmentData, Asi.Contracts"
    ]
  },
  "UseJson": false
}

Checking if an invoice can be reversed or adjusted

Before performing a reversal or adjustment, you can check whether the invoice is eligible. These operations return a boolean result.

CanInvoiceBeReversed

Checks whether an accrual invoice can be reversed. The parameter is the invoice reference number (an integer, not the invoice ID string).

📘
Finding the invoice reference number
You can get the invoice reference number by calling GetTransactionsInvoiceReferenceNumber with the invoice ID, or by looking at the InvoiceNumber property on the InvoiceSummary.

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "CanInvoiceBeReversed",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      2317
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "System.Int32"
    ]
  },
  "UseJson": false
}

CanCashInvoiceBeReversed

Checks whether a cash invoice can be reversed. The parameter is the invoice ID (a string).

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "CanCashInvoiceBeReversed",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      "8158"
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "System.String"
    ]
  },
  "UseJson": false
}

CanOrderInvoiceBeAdjusted

Checks whether an order invoice can be adjusted. The parameter is the invoice reference number (an integer).

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "CanOrderInvoiceBeAdjusted",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      2317
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "System.Int32"
    ]
  },
  "UseJson": false
}

CanDuesInvoiceBeAdjusted

Checks whether a dues invoice can be adjusted. The parameter is the invoice reference number (an integer).

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "CanDuesInvoiceBeAdjusted",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      2317
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "System.Int32"
    ]
  },
  "UseJson": false
}

CanInvoiceBeRefunded

Checks whether an invoice can be refunded. The invoice must be an accrual invoice with a negative balance. The parameter is the invoice reference number (an integer).

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "CanInvoiceBeRefunded",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      2317
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "System.Int32"
    ]
  },
  "UseJson": false
}

Updating the bill-to on an event invoice

Changes the bill-to contact on an event invoice.

InvoiceActionUpdateBillToIdData properties:

InvoiceId (string, required) — The invoice ID
AdjustmentDate (datetime, required) — The date of the change
AdjustmentReason (string, optional) — Reason for changing the bill-to
NewBillToId (string, required) — The new bill-to party ID

POST https://{{URL}}/api/Invoice/_execute

{
  "$type": "Asi.Soa.Core.DataContracts.GenericExecuteRequest, Asi.Contracts",
  "OperationName": "UpdateEventInvoiceBillToId",
  "EntityTypeName": "Invoice",
  "Parameters": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.Object, mscorlib]], mscorlib",
    "$values": [
      {
        "$type": "Asi.Soa.Commerce.DataContracts.InvoiceActionUpdateBillToIdData, Asi.Contracts",
        "InvoiceId": "8300",
        "AdjustmentDate": "2026-04-23T00:00:00",
        "AdjustmentReason": "Transferring invoice to employer",
        "NewBillToId": "23500"
      }
    ]
  },
  "ParameterTypeName": {
    "$type": "System.Collections.ObjectModel.Collection`1[[System.String, mscorlib]], mscorlib",
    "$values": [
      "Asi.Soa.Commerce.DataContracts.InvoiceActionUpdateBillToIdData, Asi.Contracts"
    ]
  },
  "UseJson": false
}

Typical workflow

Check if the invoice can be adjusted/reversed using the appropriate Can* operation
Get the invoice details via GET https://{{URL}}/api/InvoiceSummary/{invoiceId} to find the current balance, lines, and reference number
Execute the adjustment/reversal using the appropriate Process* operation
Verify the result by re-fetching the invoice to confirm the balance has changed

📘
See also

Reverse and rebill — For reversing and rebilling dues invoices in a single operation

Adding, modifying and paying for a subscription — For creating invoices via subscriptions

Allocating payments for subscription invoices — For applying payments to invoices

Adjusting invoices

Writing off an invoice

Recording a refund

Adjusting a cash invoice

📘
AdjustmentPrice vs OriginalUnitPrice/NewUnitPrice

Example: Adjust the price of a line item

Example: Remove a line from a cash invoice

Reversing a cash invoice

📘
Checking eligibility

Reversing an accrual invoice

Adjusting an accrual invoice

Reversing a commerce order invoice

Adjusting a commerce order invoice

Example: Adjust a line item price and reduce shipping

Reversing a fundraising invoice

Adjusting a fundraising invoice

Checking if an invoice can be reversed or adjusted

CanInvoiceBeReversed

📘
Finding the invoice reference number

CanCashInvoiceBeReversed

CanOrderInvoiceBeAdjusted

CanDuesInvoiceBeAdjusted

CanInvoiceBeRefunded

Updating the bill-to on an event invoice

Typical workflow

📘
See also

Writing off an invoice

Recording a refund

Adjusting a cash invoice

📘AdjustmentPrice vs OriginalUnitPrice/NewUnitPrice

Example: Adjust the price of a line item

Example: Remove a line from a cash invoice

Reversing a cash invoice

📘Checking eligibility

Reversing an accrual invoice

Adjusting an accrual invoice

Reversing a commerce order invoice

Adjusting a commerce order invoice

Example: Adjust a line item price and reduce shipping

Reversing a fundraising invoice

Adjusting a fundraising invoice

Checking if an invoice can be reversed or adjusted

CanInvoiceBeReversed

📘Finding the invoice reference number

CanCashInvoiceBeReversed

CanOrderInvoiceBeAdjusted

CanDuesInvoiceBeAdjusted

CanInvoiceBeRefunded

Updating the bill-to on an event invoice

Typical workflow

📘See also

📘
AdjustmentPrice vs OriginalUnitPrice/NewUnitPrice

📘
Checking eligibility

📘
Finding the invoice reference number

📘
See also