ECI Einvoice API
Electronic invoicing integration with the Avalara E-Invoicing & Live Reporting system: documents, input fields and country mandates, for ECI customers subject to statutory e-invoicing regimes.
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OpenAPI Specification
{
"openapi": "3.0.1",
"info": {
"title": "Einvoice.API",
"version": "1.0"
},
"paths": {
"/api/v1/documents": {
"get": {
"tags": [
"Document"
],
"summary": "Get a list of documents.",
"operationId": "GetDocuments",
"parameters": [
{
"name": "startDate",
"in": "query",
"description": "The start date to filter documents by processing date",
"schema": {
"type": "string",
"format": "date-time"
}
},
{
"name": "endDate",
"in": "query",
"description": "The end date to filter documents by processing date",
"schema": {
"type": "string",
"format": "date-time"
}
},
{
"name": "take",
"in": "query",
"description": "The maximum number of documents to return. Default: 500. Minimum: 1. Maximum: 500.",
"schema": {
"maximum": 500,
"minimum": 1,
"type": "integer",
"format": "int32",
"default": 500
}
},
{
"name": "skip",
"in": "query",
"description": "The number of documents to skip. Use for paging to retrieve further batches of documents. Default: 0. Minimum: 0.",
"schema": {
"maximum": 2147483647,
"minimum": 0,
"type": "integer",
"format": "int32",
"default": 0
}
}
],
"responses": {
"200": {
"description": "Success",
"content": {
"text/plain": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetDocumentResponseListResponse"
}
},
"application/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetDocumentResponseListResponse"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetDocumentResponseListResponse"
}
}
}
}
}
},
"post": {
"tags": [
"Document"
],
"summary": "Submit data for an invoice.",
"operationId": "PostInvoiceDocument",
"parameters": [
{
"name": "mandateName",
"in": "query",
"description": "The mandate name for which this invoice document is being submitted",
"required": true,
"schema": {
"type": "string"
}
}
],
"requestBody": {
"description": "The invoice document to submit",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceInvoiceDocumentRequest"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceInvoiceDocumentRequest"
}
},
"application/*+json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceInvoiceDocumentRequest"
}
}
}
},
"responses": {
"200": {
"description": "Success",
"content": {
"text/plain": {
"schema": {
"$ref": "#/components/schemas/EinvoicePostDocumentResponse"
}
},
"application/json": {
"schema": {
"$ref": "#/components/schemas/EinvoicePostDocumentResponse"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/EinvoicePostDocumentResponse"
}
}
}
}
}
}
},
"/api/v1/documents/credit-note": {
"post": {
"tags": [
"Document"
],
"summary": "Submit data for a credit note.",
"operationId": "PostCreditNoteDocument",
"parameters": [
{
"name": "mandateName",
"in": "query",
"description": "The mandate name for which this credit note document is being submitted",
"required": true,
"schema": {
"type": "string"
}
}
],
"requestBody": {
"description": "The credit note document to submit",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceCreditNoteDocumentRequest"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceCreditNoteDocumentRequest"
}
},
"application/*+json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceCreditNoteDocumentRequest"
}
}
}
},
"responses": {
"200": {
"description": "Success",
"content": {
"text/plain": {
"schema": {
"$ref": "#/components/schemas/EinvoicePostDocumentResponse"
}
},
"application/json": {
"schema": {
"$ref": "#/components/schemas/EinvoicePostDocumentResponse"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/EinvoicePostDocumentResponse"
}
}
}
}
}
}
},
"/api/v1/documents/{documentId}": {
"get": {
"tags": [
"Document"
],
"summary": "Get a single document by Id.",
"operationId": "GetDocument",
"parameters": [
{
"name": "documentId",
"in": "path",
"description": "The unique Id of the document.",
"required": true,
"schema": {
"type": "string"
}
}
],
"responses": {
"200": {
"description": "Success",
"content": {
"text/plain": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetDocumentResponse"
}
},
"application/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetDocumentResponse"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetDocumentResponse"
}
}
}
},
"404": {
"description": "Not Found",
"content": {
"text/plain": {
"schema": {
"$ref": "#/components/schemas/ProblemDetails"
}
},
"application/json": {
"schema": {
"$ref": "#/components/schemas/ProblemDetails"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/ProblemDetails"
}
}
}
}
}
}
},
"/api/v1/documents/{documentId}/download": {
"get": {
"tags": [
"Document"
],
"summary": "Get a single document by Id and type.",
"operationId": "GetDocumentByIdWithDownloadType",
"parameters": [
{
"name": "documentId",
"in": "path",
"description": "The unique Id of the document.",
"required": true,
"schema": {
"type": "string"
}
},
{
"name": "type",
"in": "query",
"description": "Document type.",
"required": true,
"schema": {
"type": "string"
}
}
],
"responses": {
"200": {
"description": "Success",
"content": {
"text/plain": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetDownloadDocumentResponse"
}
},
"application/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetDownloadDocumentResponse"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetDownloadDocumentResponse"
}
}
}
},
"404": {
"description": "Not Found",
"content": {
"text/plain": {
"schema": {
"$ref": "#/components/schemas/ProblemDetails"
}
},
"application/json": {
"schema": {
"$ref": "#/components/schemas/ProblemDetails"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/ProblemDetails"
}
}
}
}
}
}
},
"/api/v1/input-fields": {
"get": {
"tags": [
"InputField"
],
"summary": "Get a list of input fields, optionally filtered by a single mandate name.",
"operationId": "ListInputFields",
"parameters": [
{
"name": "mandateName",
"in": "query",
"schema": {
"type": "string"
}
}
],
"responses": {
"200": {
"description": "Success",
"content": {
"text/plain": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetInputFieldResponseListResponse"
}
},
"application/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetInputFieldResponseListResponse"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetInputFieldResponseListResponse"
}
}
}
}
}
}
},
"/api/v1/mandates": {
"get": {
"tags": [
"Mandate"
],
"summary": "Get a list of country mandates, optionally filtered by a single mandate name.",
"operationId": "ListMandates",
"parameters": [
{
"name": "mandateName",
"in": "query",
"schema": {
"type": "string"
}
}
],
"responses": {
"200": {
"description": "Success",
"content": {
"text/plain": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetMandateResponseListResponse"
}
},
"application/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetMandateResponseListResponse"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/EinvoiceGetMandateResponseListResponse"
}
}
}
}
}
}
}
},
"components": {
"schemas": {
"EinvoiceCreditNoteDocumentRequest": {
"required": [
"creditNote"
],
"type": "object",
"properties": {
"creditNote": {
"$ref": "#/components/schemas/UblCreditNote"
}
},
"additionalProperties": false
},
"EinvoiceGetDocumentEventResponse": {
"type": "object",
"properties": {
"eventDateTime": {
"type": "string",
"format": "date-time",
"nullable": true
},
"message": {
"type": "string",
"nullable": true
},
"additionalDetailKey": {
"type": "string",
"nullable": true
},
"additionalDetailValue": {
"type": "string",
"nullable": true
}
},
"additionalProperties": false
},
"EinvoiceGetDocumentResponse": {
"type": "object",
"properties": {
"id": {
"type": "string",
"nullable": true
},
"customerName": {
"type": "string",
"nullable": true
},
"supplierName": {
"type": "string",
"nullable": true
},
"documentNumber": {
"type": "string",
"nullable": true
},
"documentDate": {
"type": "string",
"format": "date-time",
"nullable": true
},
"processDateTime": {
"type": "string",
"format": "date-time",
"nullable": true
},
"status": {
"type": "string",
"nullable": true
},
"flowDirection": {
"type": "string",
"nullable": true
},
"countryCode": {
"type": "string",
"nullable": true
},
"mandateName": {
"type": "string",
"nullable": true
},
"events": {
"type": "array",
"items": {
"$ref": "#/components/schemas/EinvoiceGetDocumentEventResponse"
},
"nullable": true
}
},
"additionalProperties": false
},
"EinvoiceGetDocumentResponseListResponse": {
"type": "object",
"properties": {
"count": {
"type": "integer",
"format": "int32"
},
"data": {
"type": "array",
"items": {
"$ref": "#/components/schemas/EinvoiceGetDocumentResponse"
},
"nullable": true
}
},
"additionalProperties": false
},
"EinvoiceGetDownloadDocumentResponse": {
"type": "object",
"properties": {
"metaData": {
"$ref": "#/components/schemas/Metadata"
},
"documentData": {
"type": "string",
"nullable": true
}
},
"additionalProperties": false
},
"EinvoiceGetInputFieldResponse": {
"type": "object",
"properties": {
"id": {
"type": "string",
"nullable": true
},
"description": {
"type": "string",
"nullable": true
},
"documentationLink": {
"type": "string",
"nullable": true
},
"fieldName": {
"type": "string",
"nullable": true
},
"path": {
"type": "string",
"nullable": true
},
"mandates": {
"type": "array",
"items": {
"$ref": "#/components/schemas/FieldMandate"
},
"nullable": true
}
},
"additionalProperties": false
},
"EinvoiceGetInputFieldResponseListResponse": {
"type": "object",
"properties": {
"count": {
"type": "integer",
"format": "int32"
},
"data": {
"type": "array",
"items": {
"$ref": "#/components/schemas/EinvoiceGetInputFieldResponse"
},
"nullable": true
}
},
"additionalProperties": false
},
"EinvoiceGetMandateResponse": {
"type": "object",
"properties": {
"id": {
"type": "string",
"nullable": true
},
"countryCode": {
"type": "string",
"nullable": true
},
"mandateName": {
"type": "string",
"nullable": true
},
"mandateDescription": {
"type": "string",
"nullable": true
},
"documentDownloadTypes": {
"type": "array",
"items": {
"type": "string"
},
"nullable": true
}
},
"additionalProperties": false
},
"EinvoiceGetMandateResponseListResponse": {
"type": "object",
"properties": {
"count": {
"type": "integer",
"format": "int32"
},
"data": {
"type": "array",
"items": {
"$ref": "#/components/schemas/EinvoiceGetMandateResponse"
},
"nullable": true
}
},
"additionalProperties": false
},
"EinvoiceInvoiceDocumentRequest": {
"required": [
"invoice"
],
"type": "object",
"properties": {
"invoice": {
"$ref": "#/components/schemas/UblInvoice"
}
},
"additionalProperties": false
},
"EinvoicePostDocumentResponse": {
"type": "object",
"properties": {
"id": {
"type": "string",
"nullable": true
}
},
"additionalProperties": false
},
"FieldMandate": {
"type": "object",
"properties": {
"mandateName": {
"type": "string",
"nullable": true
},
"validationLevel": {
"$ref": "#/components/schemas/FieldMandateValidationLevel"
},
"validationLevelDescription": {
"type": "string",
"nullable": true
}
},
"additionalProperties": false
},
"FieldMandateValidationLevel": {
"enum": [
0,
1,
2
],
"type": "integer",
"format": "int32"
},
"Metadata": {
"type": "object",
"properties": {
"type": {
"type": "string",
"nullable": true
},
"isBase64Encoded": {
"type": "boolean",
"nullable": true
}
},
"additionalProperties": false
},
"ProblemDetails": {
"type": "object",
"properties": {
"type": {
"type": "string",
"nullable": true
},
"title": {
"type": "string",
"nullable": true
},
"status": {
"type": "integer",
"format": "int32",
"nullable": true
},
"detail": {
"type": "string",
"nullable": true
},
"instance": {
"type": "string",
"nullable": true
}
},
"additionalProperties": { }
},
"UblCreditNote": {
"type": "object",
"properties": {
"customizationID": {
"type": "string",
"description": "* Default: \"urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0\"",
"nullable": true
},
"profileID": {
"type": "string",
"description": "* Default: \"urn:fdc:peppol.eu:2017:poacc:billing:01:1.0\"",
"nullable": true
},
"ublVersionID": {
"type": "string",
"description": "UBL Version: The version of the Universal Business Language used for the document.\r\n* Default: \"2.1\"",
"nullable": true
},
"id": {
"type": "string",
"description": "Credit Note number: A unique identification of the Credit Note.\r\n* Maps to: CreditNote/cbc:ID",
"nullable": true
},
"uuid": {
"type": "string",
"description": "Unique identifier: A universally unique identifier for an instance of this document.\r\n* Maps to: CreditNote/cbc:UUID",
"nullable": true
},
"issueDate": {
"type": "string",
"description": "Invoice issue date: The date when the Invoice was issued.\r\n* Maps to: CreditNote/cbc:IssueDate",
"format": "date-time",
"nullable": true
},
"issueTime": {
"pattern": "^\\d{1,2}:\\d{2}:\\d{2}$",
"type": "string",
"description": "Invoice issue time: The time when the Invoice was issued.\r\n* Default: \"00:00:00\"\r\n* Maps to: CreditNote/cbc:IssueTime",
"nullable": true
},
"creditNoteTypeCode": {
"type": "string",
"description": "Credit Note type code: A code specifying the type of the Credit Note. See: https://docs.peppol.eu/poacc/billing/3.0/codelist/UNCL1001-cn/.\r\n* Maps to: CreditNote/cbc:CreditNoteTypeCode",
"nullable": true
},
"creditNoteTypeCodeListVersionID": {
"type": "string",
"description": "Credit Note type code list version ID\r\n* Maps to: CreditNote/cbc:CreditNoteTypeCode/@listVersionID",
"nullable": true
},
"note": {
"type": "array",
"items": {
"type": "string"
},
"description": "Document note: A textual note that gives unstructured information that is relevant to the Document. Maps to:\r\n* CreditNote/cbc:Note",
"nullable": true
},
"taxPointDate": {
"type": "string",
"description": "Value added tax point date: The date when the VAT becomes accountable for the Seller and for the Buyer if different from the issue date. Maps to:\r\n* CreditNote/cbc:TaxPointDate",
"format": "date-time",
"nullable": true
},
"documentCurrencyCode": {
"type": "string",
"description": "Document currency code: The currency in which all document amounts are given, except for the Total VAT amount in accounting currency. Maps to:\r\n* CreditNote/cbc:DocumentCurrencyCode",
"nullable": true
},
"taxCurrencyCode": {
"type": "string",
"description": "VAT accounting currency code: The currency used for VAT accounting and reporting purposes. Maps to:\r\n* CreditNote/cbc:TaxCurrencyCode",
"nullable": true
},
"pricingCurrencyCode": {
"type": "string",
"description": "Pricing currency code: A code signifying the currency used for prices in the Invoice. Maps to:\r\n* CreditNote/cbc:PricingCurrencyCode",
"nullable": true
},
"paymentCurrencyCode": {
"type": "string",
"description": "Payment currency code: A code signifying the currency used for payment in the Invoice. Maps to:\r\n* CreditNote/cbc:PaymentCurrencyCode",
"nullable": true
},
"accountingCost": {
"type": "string",
"description": "Buyer accounting reference: A textual value that specifies where to book the relevant data into the Buyer's financial accounts. Maps to:\r\n* CreditNote/cbc:AccountingCost",
"nullable": true
},
"buyerReference": {
"type": "string",
"description": "Buyer Reference: An identifier assigned by the Buyer used for internal routing purposes. Maps to:\r\n* CreditNote/cbc:BuyerReference",
"nullable": true
},
"invoicePeriod": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoicePeriod"
},
"description": "Document period.\r\n* Maps to: CreditNote/cac:InvoicePeriod",
"nullable": true
},
"orderReference": {
"$ref": "#/components/schemas/UblInvoiceOrder"
},
"billingReference": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceBilling"
},
"description": "Previous billing information. Maps to:\r\n* CreditNote/cac:BillingReference",
"nullable": true
},
"despatchDocumentReference": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceDespatchDocument"
},
"description": "Despatch advice document information. Maps to:\r\n* CreditNote/cac:DespatchDocumentReference",
"nullable": true
},
"receiptDocumentReference": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceReceiptDocument"
},
"description": "Receiving advice document information. Maps to:\r\n* CreditNote/cac:ReceiptDocumentReference",
"nullable": true
},
"originatorDocumentReference": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceOriginatorDocument"
},
"description": "Originator document information. Maps to:\r\n* CreditNote/cac:OriginatorDocumentReference",
"nullable": true
},
"contractDocumentReference": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceContractDocument"
},
"description": "Contract document information. Maps to:\r\n* CreditNote/cac:ContractDocumentReference",
"nullable": true
},
"additionalDocumentReference": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceAdditionalDocument"
},
"description": "Supporting document information. Maps to:\r\n* CreditNote/cac:AdditionalDocumentReference",
"nullable": true
},
"accountingSupplierParty": {
"$ref": "#/components/schemas/UblInvoiceSupplier"
},
"accountingCustomerParty": {
"$ref": "#/components/schemas/UblInvoiceCustomer"
},
"payeeParty": {
"$ref": "#/components/schemas/UblInvoicePayee"
},
"taxRepresentativeParty": {
"$ref": "#/components/schemas/UblInvoiceTaxRepresentative"
},
"delivery": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceDelivery"
},
"description": "Deliver to information.\r\n* Maps to: CreditNote/cac:Delivery",
"nullable": true
},
"paymentMeans": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoicePaymentMeans"
},
"description": "Payment means information.\r\n* Maps to: CreditNote/cac:PaymentMeans",
"nullable": true
},
"paymentTerms": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoicePaymentTerms"
},
"description": "Payment terms information.\r\n* Maps to: CreditNote/cac:PaymentTerms",
"nullable": true
},
"allowanceCharge": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceAllowanceCharge"
},
"description": "Allowance or charge information.\r\n* Maps to: CreditNote/cac:AllowanceCharge",
"nullable": true
},
"taxExchangeRate": {
"$ref": "#/components/schemas/UblInvoiceTaxExchangeRate"
},
"taxTotal": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceTaxTotal"
},
"description": "Information about the total tax for the document.\r\n* Maps to: CreditNote/cac:TaxTotal",
"nullable": true
},
"legalMonetaryTotal": {
"$ref": "#/components/schemas/UblInvoiceLegalMonetaryTotal"
},
"creditNoteLine": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblCreditNoteLine"
},
"description": "Credit Note line information.\r\n* Maps to: CreditNote/cac:InvoiceLine",
"nullable": true
},
"ublExtensions": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceExtension"
},
"description": "[NOT YET IMPLEMENTED] Invoice UBL Extension information.\r\n* Maps to: CreditNote/cec:UBLExtensions",
"nullable": true
}
},
"additionalProperties": false
},
"UblCreditNoteLine": {
"type": "object",
"properties": {
"id": {
"type": "string",
"description": "Document line identifier: A unique identifier for the individual line within the Document.\r\n* Maps to: CreditNote/cac:CreditNoteLine/cbc:ID",
"nullable": true
},
"note": {
"type": "array",
"items": {
"type": "string"
},
"description": "Document line note: A textual note that gives unstructured information that is relevant to the Document line.\r\n* Maps to: CreditNote/cac:CreditNoteLine/cbc:Note",
"nullable": true
},
"creditedQuantity": {
"type": "number",
"description": "Quantity: The quantity of items (goods or services) that is charged in the Document line.\r\n* Maps to: CreditNote/cac:CreditNoteLine/cbc:CreditedQuantity",
"format": "double",
"nullable": true
},
"creditedQuantityUnitCode": {
"type": "string",
"description": "Quantity unit of measure: The unit of measure that applies to the invoiced quantity. See: https://docs.peppol.eu/poacc/billing/3.0/codelist/UNECERec20/.\r\n* Maps to: CreditNote/cac:CreditNoteLine/cbc:CreditedQuantity/@unitCode",
"nullable": true
},
"lineExtensionAmount": {
"type": "number",
"description": "Document line net amount: The total amount of the Document line. The amount is \"net\" without VAT. Provide value according to document currency code.\r\n* Maps to: CreditNote/cac:CreditNoteLine/cbc:LineExtensionAmount",
"format": "double",
"nullable": true
},
"accountingCost": {
"type": "string",
"description": "Document line Buyer accounting reference: A textual value that specifies where to book the relevant data into the Buyer's financial accounts.\r\n* Maps to: CreditNote/cac:CreditNoteLine/cbc:AccountingCost",
"nullable": true
},
"invoicePeriod": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceLinePeriod"
},
"description": "Document line period information.\r\n* Maps to: CreditNote/cac:CreditNoteLine/cac:InvoicePeriod",
"nullable": true
},
"orderLineReference": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceLineOrderLineReference"
},
"description": "Referenced purchase order line information.\r\n* Maps to: CreditNote/cac:CreditNoteLine/cac:OrderLineReference",
"nullable": true
},
"documentReference": {
"type": "array",
"items": {
"$ref": "#/components/schemas/UblInvoiceLineDocument"
},
"description": "Document line object information.\r\n* Maps to: Cre
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