Mews Accounting items API

openapi: 3.2.0
info:
  title: Mews Booking Engine API (Distributor) Account notes Accounting items API
  version: v1
  description: The Mews Booking Engine API (historically the Distributor API, served from /api/distributor/v1) lets developers build guest-facing booking engines that create reservations directly in Mews. It exposes enterprise configuration, availability, pricing, products, vouchers, payment cards, and reservation group creation for front-end client consumption.
  x-generated-from: documentation
  x-source-url: https://api.mews.com/Swagger/distributor/swagger.json
  x-last-validated: '2026-06-02'
servers:
- url: https://api.mews.com
  description: Production
- url: https://api.mews-demo.com
  description: Demo / sandbox
security:
- MewsClientToken: []
  MewsAccessToken: []
tags:
- name: Accounting items
paths:
  /api/connector/v1/accountingItems/update:
    post:
      tags:
      - Accounting items
      summary: Mews Update Accounting Items
      description: "Updates specified accounting items. You can use this operation to assign an accounting item to a different account or bill. Note this operation supports [Portfolio Access Tokens](https://mews-systems.gitbook.io/connector-api/concepts/multi-property/).\n\n> **State Restrictions**: Only accounting items in specific states can be moved:\n> - **Order items**: Must be in `Open` state\n> - **Payments**: Must be in `Pending` state\n> \n> Attempting to move items in other states (e.g., `Closed`, `Inactive`, `Charged`, `Failed`, `Canceled`) will result in an `Invalid AccountingItemId` error."
      operationId: accountingItems_update
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MultipleAccountingItemsUpdateParameters'
            example:
              ClientToken: E0D439EE522F44368DC78E1BFB03710C-D24FB11DBE31D4621C4817E028D9E1D
              AccessToken: C66EF7B239D24632943D115EDE9CB810-EA00F8FD8294692C940F6B5A8F9453D
              Client: Sample Client 1.0.0
              EnterpriseId: 3fa85f64-5717-4562-b3fc-2c963f66afa6
              AccountingItemUpdates:
              - AccountingItemId: 6c2897de-620a-4f48-af1e-ada8004202bd
                AccountId:
                  Value: 182a56ee-037d-4da5-b6f8-ada8006e7d5c
                BillId:
                  Value: 9e3791dc-95c7-439a-aa8a-ada8007de0ca
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccountingItemUpdateResult'
              example:
                OrderItems:
                - Id: 6c2897de-620a-4f48-af1e-ada8004202bd
                  AccountId: 182a56ee-037d-4da5-b6f8-ada8006e7d5c
                  OrderId: f9090129-fb49-46d2-9dc5-ad9d015d43b9
                  BillId: 9e3791dc-95c7-439a-aa8a-ada8007de0ca
                  AccountingCategoryId: d250149e-a29d-4c70-b607-a1759faf7320
                  Amount:
                    Currency: GBP
                    NetValue: 95.24
                    GrossValue: 100
                    TaxValues:
                    - Code: UK-2020-R
                      Value: 4.76
                    Breakdown:
                      Items:
                      - TaxRateCode: UK-2020-R
                        NetValue: 95.24
                        TaxValue: 4.76
                  RevenueType: Additional
                  ConsumedUtc: '2021-09-19T04:00:20Z'
                  ClosedUtc: null
                  AccountingState: Open
                  Data:
                    Discriminator: CancellationFee
                    Value: null
                PaymentItems: []
        '400':
          description: Error caused by the client app, e.g. in case of malformed request or invalid identifier of a resource. In most cases, such an error signifies a bug in the client app (consumer of the API).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsUpdate400Example:
                  summary: Default accountingItems_update 400 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
        '401':
          description: Error caused by usage of invalid ClientToken, AccessToken, or you may not have the necessary permission to use the endpoint.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsUpdate401Example:
                  summary: Default accountingItems_update 401 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
        '403':
          description: Server error that should be reported to the end user of the client app. Happens for example when the server-side validation fails or when a business-logic check is violated.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsUpdate403Example:
                  summary: Default accountingItems_update 403 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
        '408':
          description: Error caused by heavy request that takes too long to process (typically tens of seconds). To get around this, request data in smaller batches. For more information, see [Request timeouts](https://mews-systems.gitbook.io/connector-api/guidelines/requests#request-timeouts)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsUpdate408Example:
                  summary: Default accountingItems_update 408 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
        '204':
          description: Server has successfully fulfilled the request and there is no additional information to send back.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsUpdate204Example:
                  summary: Default accountingItems_update 204 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
        '429':
          description: Error caused by too many requests sent in a given amount of time. Response contains `Retry-After` header indicating how long the user agent should wait before making a follow-up request. For more information, see [Request limits](https://mews-systems.gitbook.io/connector-api/guidelines/requests#request-limits).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsUpdate429Example:
                  summary: Default accountingItems_update 429 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
        '500':
          description: Unexpected error on the Mews side. This may be due to a software fault. If such a situation occurs, the error will be logged and the development team notified, however you can raise an issue through GitHub on our [documentation repository](https://github.com/MewsSystems/gitbook-connector-api).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsUpdate500Example:
                  summary: Default accountingItems_update 500 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /api/connector/v1/accountingItems/getAll:
    post:
      tags:
      - Accounting items
      summary: Mews Get All Accounting Items
      description: Use [Get all payments](https://mews-systems.gitbook.io/connector-api/operations/payments#get-all-payments) and [Get all order items](https://mews-systems.gitbook.io/connector-api/operations/orderitems#get-all-order-items) instead.
      operationId: accountingItems_getAll
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AccountingItemParameters'
            example:
              ClientToken: E0D439EE522F44368DC78E1BFB03710C-D24FB11DBE31D4621C4817E028D9E1D
              AccessToken: C66EF7B239D24632943D115EDE9CB810-EA00F8FD8294692C940F6B5A8F9453D
              Client: Sample Client 1.0.0
              ConsumedUtc:
                StartUtc: '2020-01-05T00:00:00Z'
                EndUtc: '2020-01-10T00:00:00Z'
              ClosedUtc:
                StartUtc: '2020-01-05T00:00:00Z'
                EndUtc: '2020-01-10T00:00:00Z'
              UpdatedUtc:
                StartUtc: '2020-01-05T00:00:00Z'
                EndUtc: '2020-01-10T00:00:00Z'
              ItemIds:
              - cb643cb7-8b6e-48a6-b67e-ad4c0041f550
              - 44ca12b8-f009-455e-be91-ad4c013fcbc5
              Extent:
                OrderItems: true
                PaymentItems: true
                CreditCardTransactions: false
              States:
              - Open
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccountingItemResult'
              example:
                OrderItems:
                - Id: cb643cb7-8b6e-48a6-b67e-ad4c0041f550
                  AccountId: 77673c9d-0e31-4e90-9228-ad4b00a9fcdc
                  OrderId: 1103b431-998a-4b78-84de-ad4b00a9fd99
                  BillId: null
                  AccountingCategoryId: d250149e-a29d-4c70-b607-a1759faf7320
                  UnitCount: 15
                  UnitAmount:
                    Currency: EUR
                    NetValue: 8.4
                    GrossValue: 10.0
                    TaxValues:
                    - Code: DE-2020-1-I
                      Value: 1.6
                    Breakdown:
                      Items:
                      - TaxRateCode: DE-2020-1-I
                        NetValue: 8.4
                        TaxValue: 1.6
                  Amount:
                    Value: 150.0
                    Net: 126.05
                    Tax: 23.95
                    TaxRate: 19.0
                    Currency: EUR
                    NetValue: 126.05
                    GrossValue: 150.0
                    TaxValues:
                    - Code: DE-2020-1-I
                      Value: 23.95
                    Breakdown:
                      Items:
                      - TaxRateCode: DE-2020-1-I
                        NetValue: 126.05
                        TaxValue: 23.95
                  OriginalAmount:
                    Value: 150.0
                    Net: 126.05
                    Tax: 23.95
                    TaxRate: 19.0
                    Currency: EUR
                    NetValue: 126.05
                    GrossValue: 150.0
                    TaxValues:
                    - Code: DE-2020-1-I
                      Value: 23.95
                    Breakdown:
                      Items:
                      - TaxRateCode: DE-2020-1-I
                        NetValue: 126.05
                        TaxValue: 23.95
                  RevenueType: Additional
                  CreatorProfileId: 3cd637ef-4728-47f9-8fb1-afb900c9cdcf
                  UpdaterProfileId: 122fc063-ec6e-4198-b8db-6b168a59ffae
                  CreatedUtc: '2021-06-19T00:00:00Z'
                  UpdatedUtc: '2021-06-19T00:00:00Z'
                  ConsumedUtc: '2021-06-19T04:00:08Z'
                  CanceledUtc: null
                  ClosedUtc: null
                  StartUtc: null
                  AccountingState: Open
                  Data:
                    Discriminator: CancellationFee
                    Value: null
                PaymentItems:
                - Id: 44ca12b8-f009-455e-be91-ad4c013fcbc5
                  AccountId: 5da55e5c-18e5-48d8-9a0e-ac0600704c5c
                  BillId: null
                  AccountingCategoryId: b89345c1-2814-4750-808d-aa7900ee464a
                  Amount:
                    Value: 850.0
                    Net: 850.0
                    Tax: 0.0
                    TaxRate: 0.0
                    Currency: GBP
                    NetValue: 850.0
                    GrossValue: 850.0
                    TaxValues: []
                    Breakdown:
                      Items:
                      - TaxRateCode: null
                        NetValue: 850.0
                        TaxValue: 0.0
                  OriginalAmount:
                    Value: 850.0
                    Net: 850.0
                    Tax: 0.0
                    TaxRate: 0.0
                    Currency: GBP
                    NetValue: 850.0
                    GrossValue: 850.0
                    TaxValues: []
                    Breakdown:
                      Items:
                      - TaxRateCode: null
                        NetValue: 850.0
                        TaxValue: 0.0
                  AmountDefault: null
                  Notes: NORMAL0140
                  SettlementId: po_1Lun9w4JpyDC38oQJQz7hAcx
                  ConsumedUtc: '2021-06-19T19:24:20Z'
                  ClosedUtc: null
                  AccountingState: Open
                  State: Charged
                  Identifier: null
                  Data:
                    Discriminator: Invoice
                    Value:
                      InvoiceId: 3c818013-d9de-47e9-bb2c-ad4c013f9ad3
                CreditCardTransactions: null
        '400':
          description: Error caused by the client app, e.g. in case of malformed request or invalid identifier of a resource. In most cases, such an error signifies a bug in the client app (consumer of the API).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsGetAll400Example:
                  summary: Default accountingItems_getAll 400 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
        '401':
          description: Error caused by usage of invalid ClientToken, AccessToken, or you may not have the necessary permission to use the endpoint.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsGetAll401Example:
                  summary: Default accountingItems_getAll 401 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
        '403':
          description: Server error that should be reported to the end user of the client app. Happens for example when the server-side validation fails or when a business-logic check is violated.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsGetAll403Example:
                  summary: Default accountingItems_getAll 403 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
        '408':
          description: Error caused by heavy request that takes too long to process (typically tens of seconds). To get around this, request data in smaller batches. For more information, see [Request timeouts](https://mews-systems.gitbook.io/connector-api/guidelines/requests#request-timeouts)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsGetAll408Example:
                  summary: Default accountingItems_getAll 408 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
        '204':
          description: Server has successfully fulfilled the request and there is no additional information to send back.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsGetAll204Example:
                  summary: Default accountingItems_getAll 204 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
        '429':
          description: Error caused by too many requests sent in a given amount of time. Response contains `Retry-After` header indicating how long the user agent should wait before making a follow-up request. For more information, see [Request limits](https://mews-systems.gitbook.io/connector-api/guidelines/requests#request-limits).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsGetAll429Example:
                  summary: Default accountingItems_getAll 429 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
        '500':
          description: Unexpected error on the Mews side. This may be due to a software fault. If such a situation occurs, the error will be logged and the development team notified, however you can raise an issue through GitHub on our [documentation repository](https://github.com/MewsSystems/gitbook-connector-api).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorApiExceptionResult'
              examples:
                AccountingItemsGetAll500Example:
                  summary: Default accountingItems_getAll 500 response
                  x-microcks-default: true
                  value:
                    Message: string
                    RequestId: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
                    Details: string
      deprecated: true
      x-deprecatedMessage: Use [Get all payments](https://mews-systems.gitbook.io/connector-api/operations/payments#get-all-payments) and [Get all order items](https://mews-systems.gitbook.io/connector-api/operations/orderitems#get-all-order-items) instead.
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    Amount:
      title: Amount
      required:
      - Breakdown
      - Currency
      - GrossValue
      - NetValue
      - TaxValues
      type: object
      properties:
        Currency:
          minLength: 1
          type: string
          description: ISO-4217 code of the [Currency](https://mews-systems.gitbook.io/connector-api/operations/currencies/#currency).
          format: currency
          example: EUR
        NetValue:
          type: number
          description: Net value without taxes.
          format: double
          example: 100.0
        GrossValue:
          type: number
          description: Gross value including all taxes.
          format: double
          example: 100.0
        TaxValues:
          type: array
          items:
            $ref: '#/components/schemas/TaxValue'
          description: The tax values applied.
        Breakdown:
          title: Tax breakdown
          allOf:
          - $ref: '#/components/schemas/TaxBreakdown'
          description: Information about individual tax amounts.
          example: string
      additionalProperties: false
      description: ''
      x-schema-id: Amount
    AccountingItemExtent:
      title: Accounting item extent
      type: object
      properties:
        OrderItems:
          type: boolean
          description: Whether the response should contain order items (consumed items such as nights or products).
          example: true
        PaymentItems:
          type: boolean
          description: Whether the response should contain payment items (such as cash, credit card payments or invoices).
          example: true
        CreditCardTransactions:
          type: boolean
          description: Whether the response should contain credit card transactions of the payment items.
          example: true
      additionalProperties: false
      description: ''
      x-schema-id: AccountingItemExtent
    ExtendedAmount:
      title: Extended amount
      required:
      - Breakdown
      - Currency
      - GrossValue
      - NetValue
      - TaxValues
      type: object
      properties:
        Currency:
          minLength: 1
          type: string
          description: ISO-4217 code of the [Currency](https://mews-systems.gitbook.io/connector-api/operations/currencies/#currency).
          format: currency
          example: EUR
        NetValue:
          type: number
          description: Net value without taxes.
          format: double
          example: 100.0
        GrossValue:
          type: number
          description: Gross value including all taxes.
          format: double
          example: 100.0
        TaxValues:
          type: array
          items:
            $ref: '#/components/schemas/TaxValue'
          description: The tax values applied.
        Breakdown:
          title: Tax breakdown
          allOf:
          - $ref: '#/components/schemas/TaxBreakdown'
          description: Information about individual tax amounts.
          example: string
        Value:
          type:
          - number
          - 'null'
          format: double
          example: 100.0
        Net:
          type:
          - number
          - 'null'
          format: double
          example: 100.0
        Tax:
          type:
          - number
          - 'null'
          format: double
          example: 100.0
        TaxRate:
          type:
          - number
          - 'null'
          format: double
          example: 100.0
      additionalProperties: false
      description: ''
      x-schema-id: ExtendedAmount
    TimeFilterInterval:
      title: Time interval
      type: object
      properties:
        StartUtc:
          type:
          - string
          - 'null'
          format: date-time
          example: '2026-06-02T14:30:00Z'
        EndUtc:
          type:
          - string
          - 'null'
          format: date-time
          example: '2026-06-02T14:30:00Z'
      additionalProperties: false
      description: "When a time interval is used for **filtering** (for example in parameters such as `CreatedUtc.StartUtc` / `CreatedUtc.EndUtc`), the following rules apply:\n\n- **Start equals End (equality mode)**  \n  If `StartUtc` and `EndUtc` are exactly the same timestamp, the filter is treated as an equality check for that precise moment in time:\n  \n  ```\n  CreatedUtc == StartUtc\n  ```\n  \n  This does not represent an interval; only records with `CreatedUtc` equal to that exact instant are returned.\n\n- **Start differs from End (interval mode)**  \n  If `StartUtc` and `EndUtc` are different, the filter is evaluated as a half-open interval:\n  \n  ```\n  StartUtc <= CreatedUtc < EndUtc\n  ```\n  \n  In other words, the start is inclusive and the end is exclusive.\n\nMake sure your integration takes inclusive Start / exclusive End behavior of time intervals into account so that no records at the boundaries are omitted."
      x-schema-id: TimeFilterInterval
    MultipleAccountingItemsUpdateParameters:
      title: MultipleAccountingItemsUpdateParameters
      required:
      - AccessToken
      - AccountingItemUpdates
      - Client
      - ClientToken
      type: object
      properties:
        ClientToken:
          minLength: 1
          type: string
          description: Token identifying the client application.
          example: string
        AccessToken:
          minLength: 1
          type: string
          description: Access token of the client application.
          example: string
        Client:
          minLength: 1
          type: string
          description: Name and version of the client application.
          example: string
        EnterpriseId:
          type:
          - string
          - 'null'
          description: Unique identifier of the enterprise. Required when using [Portfolio Access Tokens](https://mews-systems.gitbook.io/connector-api/concepts/multi-property), ignored otherwise.
          format: uuid
          example: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
        AccountingItemUpdates:
          type: array
          items:
            $ref: '#/components/schemas/AccountingItemUpdateParameters'
          description: List of requested updates.
      additionalProperties: false
      x-schema-id: MultipleAccountingItemsUpdateParameters
    AccountingState:
      title: Order item accounting state
      enum:
      - Open
      - Closed
      - Inactive
      - Canceled
      type: string
      x-enumDescriptions:
      - Order items which carry a non-zero value, are open, and have not been closed on a bill or invoice.
      - Order items which carry a non-zero value and have been closed on a bill or invoice.
      - Order items which are either of zero value and have not been canceled, if the state of the payment item is Pending or Failed, or items of optional reservations. Until the reservation is confirmed, all its accounting items are Inactive.
      - Order items which have been canceled, regardless of whether the item is of zero value.
    AccountingItemResult:
      title: AccountingItemResult
      type: object
      properties:
        OrderItems:
          type:
          - array
          - 'null'
          items:
            $ref: '#/components/schemas/OrderItemOld'
          description: The order items (consumed items such as nights or products).
        PaymentItems:
          type:
          - array
          - 'null'
          items:
            $ref: '#/components/schemas/PaymentItemOld'
          description: The payment items (such as cash, credit card payments or invoices).
        CreditCardTransactions:
          type:
          - array
          - 'null'
          items:
            $ref: '#/components/schemas/CreditCardTransaction'
          description: The credit card payment transactions.
      additionalProperties: false
      x-schema-id: AccountingItemResult
    TaxBreakdownItem:
      title: Tax breakdown item
      required:
      - NetValue
      - TaxValue
      type: object
      properties:
        TaxRateCode:
          type:
          - string
          - 'null'
          description: Tax rate code for the item. `null` for untaxed amounts.
          example: string
        NetValue:
          type: number
          description: The net value that the tax is calculated from.
          format: double
          example: 100.0
        TaxValue:
          type: number
          description: The value of the tax.
          format: double
          example: 100.0
      additionalProperties: false
      x-schema-id: TaxBreakdownItem
    PaymentType:
      title: Payment item data discriminator
      enum:
      - CreditCard
      - Invoice
      - Cash
      - Unspecified
      - BadDebts
      - WireTransfer
      - ExchangeRateDifference
      - ExchangeRoundingDifference
      - BankCharges
      - Cheque
      - Other
      type: string
      x-enumDescriptions:
      - '[Credit card payment item data](https://mews-systems.gitbook.io/connector-api/operations/accountingitems#credit-card-payment-item-data)'
      - '[Invoice payment item data](https://mews-systems.gitbook.io/connector-api/operations/accountingitems#invoice-payment-item-data)'
      - No additional data.
      - No additional data.
      - No additional data.
      - No additional data.
      - No additional data.
      - No additional data.
      - No additional data.
      - No additional data.
      - No additional data.
    PaymentCardPaymentData:
      title: Credit card payment item data
      type: object
      properties:
        PaymentCardId:
          type:
          - string
          - 'null'
          description: Unique identifier of the `CreditCard`.
          format: uuid
          example: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
      additionalProperties: false
      x-schema-id: PaymentCardPaymentData
    PaymentItemOld:
      title: Payment item
      required:
      - AccountId
      - AccountingState
      - Amount
      - ConsumedUtc
      - Data
      - Id
      - OriginalAmount
      - State
      type: object
      properties:
        Id:
          type: string
          description: Unique identifier of the item.
          format: uuid
          example: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
        AccountId:
          type: string
          description: Unique identifier of the account (for example `Customer`) the item belongs to.
          format: uuid
          example: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
        BillId:
          type:
          - string
          - 'null'
          description: Unique identifier of the `Bill` the item is assigned to.
          format: uuid
          example: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
        AccountingCategoryId:
          type:
          - string
          - 'null'
          description: Unique identifier of the `AccountingCategory` the item belongs to.
          format: uuid
          example: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
        Amount:
          title: Extended amount
          allOf:
          - $ref: '#/components/schemas/ExtendedAmount'
          description: Item's amount, negative amount represents either rebate or a payment.
          example: string
        OriginalAmount:
          title: Extended amount
          allOf:
          - $ref: '#/components/schemas/ExtendedAmount'
          description: Amount of item; note a negative amount represents a rebate or payment. Contains the earliest known value in conversion chain.
          example: string
        AmountDefault:
          title: Extended amount
          allOf:
          - $ref: '#/components/schemas/ExtendedAmount'
          description: Item's amount in property's default currency, negative amount represents either rebate or a payment.
          deprecated: true
          example: string
        Notes:
          type:
          - string
          - 'null'
          description: Additional notes.
          example: string
        SettlementId:
          type:
          - string
          - 'null'
          description: Identifier of the settled payment from the external system (ApplePay/GooglePay).
          example: 3edd5f9e-7e64-4f2a-9a0e-b3f200e6c111
        ConsumedUtc:
          

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# Full source: https://raw.githubusercontent.com/api-evangelist/mews-systems/refs/heads/main/openapi/mews-systems-accounting-items-api-openapi.yml