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AvidXchange Integration Guide

Connect AvidXchange accounts-payable, invoice, vendor, purchase-order, and payment workflows with enterprise systems through REST APIs, selected event notifications, and OAuth-based authorization.

AvidXchange integration options at a glance

AvidXchange’s primary integration mechanism is its REST API, which can expose invoices, vendors, purchase orders, payments, organizations, and related accounts-payable data depending on the enabled product and customer agreement. Selected integration scenarios also support webhook-style or event notifications, although coverage should be confirmed for each object and lifecycle event. OAuth-based authorization protects API access, with tenant permissions, scopes, and environments confirmed during onboarding. Martini can consume AvidXchange REST endpoints, receive supported notifications through an inbound API, schedule incremental synchronization, map JSON payloads, apply business rules, and handle pagination, retries, duplicate detection, and reconciliation.

Integration pointSupported by AvidXchange?Common use casesHow Martini supports it
REST APIsYesRetrieve and submit invoices, synchronize vendors and purchase orders, query payment status, and exchange accounting-related data. Available resources depend on the enabled AvidXchange products and customer agreement.Martini can consume AvidXchange REST endpoints, authenticate requests, map JSON payloads, apply validation and business rules, and expose normalized APIs to downstream systems.
Webhooks and outbound callbacksLimitedReceive notifications for selected invoice, payment, or processing-status scenarios. Event coverage should be confirmed for each object and lifecycle transition.Martini can expose an inbound REST endpoint or webhook workflow, validate the notification, retrieve the authoritative resource, and route it to downstream systems.
AuthenticationYesOAuth-based authorization protects access to AvidXchange APIs, with customer, account, tenant, scope, and environment permissions affecting available resources.Martini can store client credentials and tokens in protected environment configuration or secrets management and attach access tokens to API requests.
Scheduled synchronizationYesPoll invoices, vendors, payments, and statuses when event coverage is unavailable or incomplete, using pagination, filters, timestamps, or status criteria.Martini scheduler-triggered workflows can maintain checkpoints, request incremental pages, map changes, and retry transient failures.
Bulk, asynchronous, and batch APIsNot confirmedGeneral-purpose bulk or asynchronous operations were not conclusively verified. Large transfers should use paginated and incremental REST requests unless AvidXchange confirms product-specific support.Martini can orchestrate controlled batches and checkpoints through standard API calls without assuming a bulk endpoint.
File and attachment APIsNot confirmedAvidXchange processes invoice documents, but a generally available public attachment or file-transfer API was not verified. Document upload and retrieval must be confirmed for the selected product.Martini can coordinate a documented file or document endpoint if provided, while treating metadata and binary-document handling as separate operations when required.
Database accessNot confirmedDirect AvidXchange database access was not verified, so integrations should use supported APIs rather than direct database connections.Martini can persist checkpoints, mappings, and reconciliation data in an authorized external database, but does not assume access to AvidXchange’s database.
GraphQL APIsNot confirmedNo official public AvidXchange GraphQL documentation was verified; REST should be treated as the primary API approach.Martini can consume GraphQL where a confirmed endpoint exists, but this should not be assumed for AvidXchange.

How AvidXchange exposes data and business events

AvidXchange REST APIs

AvidXchange provides REST APIs through its developer portal for resources such as invoices, vendors, purchase orders, payments, and account context. The exact products, operations, scopes, and resource availability depend on customer onboarding and configuration.

Martini implementation pattern

Martini implementation pattern: A Martini workflow authenticates with the provisioned OAuth arrangement, calls the relevant AvidXchange endpoint, handles pagination and response validation, transforms the JSON payload, and writes the result to an ERP, accounting platform, database, or exposed Martini API.

Implementation sequence

Authenticate with the provisioned OAuth configuration
Request the required AvidXchange resource or submit the mapped payload
Process pagination, filtering, and status-based results
Validate and transform the JSON response
Apply duplicate and business-rule checks
Write the result to the target system and store identifiers

AvidXchange webhook-style notifications

AvidXchange supports webhook-style or event-notification capabilities for selected integration scenarios. Notifications should not be assumed for every invoice, vendor, approval, or payment event.

Martini implementation pattern

Martini implementation pattern: Martini exposes an inbound REST endpoint, validates the notification, records correlation information, retrieves the authoritative AvidXchange object when necessary, and routes the normalized event to downstream applications or messaging infrastructure.

Implementation sequence

Receive the supported AvidXchange notification
Validate the request and event payload
Record the event and correlation identifiers
Retrieve the current AvidXchange resource when required
Map the resource into the downstream model
Publish or write the result and handle duplicate notifications

AvidXchange scheduled synchronization

Polling is appropriate for object types or lifecycle transitions not covered by AvidXchange notifications. Incremental synchronization should use documented pagination, filters, timestamps, or statuses.

Martini implementation pattern

Martini implementation pattern: A scheduler-triggered workflow retrieves changed resources in controlled pages, allows for clock skew and late-arriving updates, persists a checkpoint, and retries transient failures without duplicating successful writes.

Implementation sequence

Start the scheduled synchronization workflow
Load the last successful timestamp or cursor
Request filtered and paginated AvidXchange data
Allow for late-arriving changes and clock skew
Map and reconcile each resource
Persist the checkpoint after successful processing

Common AvidXchange integration patterns

Pattern 1: Submit invoices from an accounting system

When to use this pattern

Use this pattern when an accounting or ERP application is the source of approved invoices and AvidXchange is responsible for AP processing or payment workflows.

Integration direction
NetSuite
Martini
AvidXchange
Example Mapping
AvidXchange FieldCanonical FieldTarget Field
vendorIdsupplier.externalIdvendorId
invoiceNumberinvoice.numberinvoiceNumber
invoiceDateinvoice.issueDateinvoiceDate
totalAmountinvoice.totalamount
Martini implementation pattern

Martini receives an approved invoice, resolves the vendor and purchase-order references, validates currency and required accounting fields, checks whether the source invoice was already submitted, and calls the relevant AvidXchange REST operation. It stores the returned identifier and retries only transient failures, while routing validation failures for correction.

Martini capabilities used
  • workflows
  • API consumption
  • data mapping
  • business rules
  • error handling
  • reusable integration assets

Pattern 2: Synchronize payment status to an ERP

When to use this pattern

Use this pattern when the accounting or ERP system needs current AvidXchange payment, remittance, and invoice-processing outcomes for reconciliation and reporting.

Integration direction
AvidXchange
Martini
Sage Intacct
Example Mapping
AvidXchange FieldCanonical FieldTarget Field
paymentStatuspayment.statuspaymentStatus
paymentDatepayment.settledAtpaymentDate
invoiceIdinvoice.externalIdbillReference
remittanceDetailspayment.remittanceremittance
Martini implementation pattern

A scheduled Martini workflow retrieves recently changed Payments and Invoices using incremental filters and pagination, maps AvidXchange statuses into the target status model, preserves the original status for auditability, and writes updates using stable external identifiers. Checkpoints and controlled retries prevent missed or duplicated updates.

Martini capabilities used
  • scheduled workflows
  • API consumption
  • data mapping
  • status normalization
  • checkpointing
  • retry handling

Pattern 3: Process selected AvidXchange events

When to use this pattern

Use this pattern when the customer’s AvidXchange product provides notifications for the required invoice, payment, or processing-status event.

Integration direction
AvidXchange
Martini
Microsoft Dynamics 365 Business Central
Example Mapping
AvidXchange FieldCanonical FieldTarget Field
eventTypeevent.typesourceEventType
resourceIdsource.objectIdexternalId
statusprocessing.statusdocumentStatus
occurredAtevent.occurredAtlastChangedAt
Martini implementation pattern

Martini exposes a secured inbound API for the supported notification, validates the event, retrieves the current AvidXchange resource when the notification is incomplete, and routes the normalized payload to Business Central. Idempotency keys or stored event identifiers prevent duplicate processing, while unavailable events fall back to scheduled polling.

Martini capabilities used
  • API exposure
  • webhook consumption
  • workflows
  • data mapping
  • business rules
  • duplicate detection
  • error handling

Pattern 4: Synchronize vendor master data

When to use this pattern

Use this pattern when AvidXchange and an ERP, accounting, or property-management system must keep supplier information aligned without creating duplicate Vendors.

Integration direction
AvidXchange
Martini
Yardi
Example Mapping
AvidXchange FieldCanonical FieldTarget Field
vendorIdsupplier.externalIdvendorNumber
vendorNamesupplier.namesupplierName
paymentAddresssupplier.addressremitToAddress
organizationIdaccount.organizationIdpropertyCompanyId
Martini implementation pattern

Martini retrieves or receives vendor changes, matches records using stable identifiers rather than names alone, applies field-level ownership rules, and creates or updates the target supplier. Conflicts, missing required fields, and ambiguous matches are held for review instead of being silently duplicated.

Martini capabilities used
  • scheduled workflows
  • API consumption
  • data mapping
  • business rules
  • validation
  • error routing

Applications commonly integrated with AvidXchange

AvidXchange integrations commonly connect accounts-payable processes with accounting, ERP, and property-management applications. The exact direction, objects, and supported operations depend on the AvidXchange product configuration and the other application’s API capabilities.

Application Scenario Direction Martini Pattern
NetSuite Synchronize vendors, invoices, purchase orders, accounting dimensions, and payment status across the ERP and AvidXchange AP processes. NetSuite → Martini → AvidXchange Martini receives approved NetSuite invoice or vendor data, validates required fields, maps it to AvidXchange REST payloads, stores returned identifiers, and synchronizes payment status back through a scheduled workflow.
Sage Intacct Automate invoice submission, vendor synchronization, accounting data exchange, and payment reconciliation. Sage Intacct → Martini → AvidXchange A Martini workflow orchestrates bidirectional REST calls, applies accounting and supplier mapping rules, and records AvidXchange identifiers for reconciliation and retry-safe updates.
QuickBooks Transfer vendors, invoices, and payment information between AvidXchange automation and the accounting ledger. QuickBooks → Martini → AvidXchange Martini transforms QuickBooks data into AvidXchange invoice and vendor structures, validates duplicate keys, and returns payment outcomes to the accounting workflow.
Microsoft Dynamics 365 Business Central Coordinate AP invoices, purchase orders, vendors, and payment status between Business Central and AvidXchange. Microsoft Dynamics 365 Business Central → Martini → AvidXchange Martini uses API-led workflows for submission and scheduled status retrieval, with canonical mappings for vendors, invoices, purchase orders, currencies, and payment states.
MRI Software Integrate property-management accounting data, property vendors, invoices, and payments with AP automation. MRI Software → Martini → AvidXchange Martini coordinates property and supplier identifiers, maps invoice and payment payloads, and routes validation failures for operational review.
Yardi Synchronize property-management payables, supplier information, invoice data, and payment outcomes. Yardi → Martini → AvidXchange A scheduled or API-triggered Martini workflow compares external identifiers, submits eligible invoices, and writes AvidXchange payment statuses back to Yardi.
AppFolio Connect property-management accounting records with invoice and payment automation workflows. AppFolio → Martini → AvidXchange Martini maps AppFolio supplier and invoice data to the relevant AvidXchange APIs, applies product-specific validation, and preserves correlation identifiers for reconciliation.
RealPage Coordinate property-management AP, vendor, invoice, and payment information. RealPage → Martini → AvidXchange Martini orchestrates bidirectional synchronization where APIs are available, using incremental retrieval, status mapping, duplicate checks, and controlled retries.

How to build a AvidXchange integration in Martini

Objective

Establish AvidXchange API access with the customer’s provisioned OAuth configuration and separate non-production and production environments.

Instructions in Martini

  • Confirm the AvidXchange API product, tenant, scopes, token endpoint, and base URLs
  • Store client credentials and environment settings in Martini secrets or protected configuration
  • Test authorization with the minimum required permissions

Objective

Select an event-driven, API-led, or scheduled trigger based on the AvidXchange object and lifecycle event coverage.

Instructions in Martini

  • Use a Martini API endpoint for confirmed AvidXchange notifications
  • Use a scheduler for polling when event coverage is unavailable
  • Define the synchronization window, checkpoint, and ownership model

Objective

Receive or request the authoritative AvidXchange resource and account for pagination, filtering, and incremental changes.

Instructions in Martini

  • Validate inbound event payloads before using them
  • Retrieve the current Invoice, Vendor, Payment, or Purchase Order when needed
  • Process documented pages and preserve the last successful cursor or timestamp

Objective

Coordinate calls, lookups, transformations, business rules, target writes, and reconciliation in a maintainable Martini workflow.

Instructions in Martini

  • Resolve related Vendors, Organizations or Accounts, and Purchase Orders
  • Branch on status, validation result, and target-system response
  • Persist source and AvidXchange identifiers for traceability

Objective

Convert AvidXchange JSON structures and status values into the canonical and target-system models.

Instructions in Martini

  • Map invoice, vendor, payment, and purchase-order fields explicitly
  • Normalize dates, currencies, amounts, statuses, and identifiers
  • Preserve original AvidXchange values where audit or troubleshooting requires them

Objective

Prevent invalid submissions, duplicate invoices, and inconsistent lifecycle updates before writing to a target system.

Instructions in Martini

  • Validate required vendor, invoice, amount, currency, and account fields
  • Check source and AvidXchange identifiers before creating objects
  • Use business rules for ownership, status transitions, and exception routing

Common AvidXchange data objects used in integrations

ObjectTypical UseCommon target systemsMartini handling
InvoicesSubmit supplier invoices, retrieve processing state, and reconcile invoice identifiers and accounting information.NetSuite, Sage Intacct, QuickBooks, Microsoft Dynamics 365 Business Central, MRI Software, YardiMartini validates required fields, maps invoice headers and lines, checks duplicate keys, submits or retrieves invoices, and preserves AvidXchange status and identifiers.
VendorsMaintain supplier, payee, and vendor-master information associated with invoices and payments.ERP, accounting, procurement, and property-management applicationsMartini compares stable external identifiers, applies create-or-update rules, prevents duplicate supplier creation, and routes validation conflicts for review.
PaymentsExchange payment instructions, payment status, remittance information, and payment history.NetSuite, Sage Intacct, QuickBooks, property-management platformsMartini retrieves changed payments or receives supported notifications, maps payment states and dates, and reconciles results against source invoices.
Purchase OrdersReference purchasing commitments during invoice matching and spend control.ERP, accounting, procurement, and property-management applicationsMartini maps purchase-order references and line information, validates relationships to vendors and invoices, and applies matching rules before submission.
Organizations or AccountsRepresent customer, operating-company, tenant, or accounting context associated with AP activity.ERP, accounting, and property-management platformsMartini uses account context to route requests, map ownership, and apply tenant-specific credentials or business rules where exposed.
Users or ApprovalsRepresent users, approval assignments, or workflow authorization data where exposed by the selected API.Approval workflows, ERP, and operational administration systemsMartini can synchronize exposed approval information, preserve original statuses, and apply routing rules without assuming every product exposes these objects.

Authentication and security considerations

OAuth-based API authorization

AvidXchange API access uses OAuth-based authorization. The precise grant, token URL, scopes, and tenant permissions depend on the selected API product and customer configuration.

Credential protection

  • Store client IDs, client secrets, tokens, and environment-specific endpoints in protected Martini configuration or secrets management.
  • Do not place credentials in workflow payloads, mappings, or operational logs.
  • Separate sandbox and production credentials and restrict access to the required AvidXchange resources.

Tenant and resource permissions

Confirm customer, account, organization, and tenant permissions before implementing invoice, vendor, payment, or approval workflows. Validate authorization behavior in a non-production environment before deployment.

Operational considerations for AvidXchange integrations

Pagination and incremental retrieval

Use AvidXchange’s documented pagination and server-side filters where available. Store a last-successful timestamp or cursor, allow for clock skew and late-arriving updates, and reconcile using AvidXchange identifiers rather than invoice numbers alone.

Rate limits and retries

Confirm customer-specific quotas with AvidXchange. Apply exponential backoff to transient failures, timeouts, and throttling responses, and do not retry non-recoverable validation errors.

Idempotency and status handling

Persist source IDs, AvidXchange IDs, correlation IDs, and processing state. Treat invoice and payment statuses as a lifecycle rather than assuming every non-success response is terminal. Use idempotency or external-reference fields where the relevant operation supports them.

Documents and schema changes

Do not assume invoice metadata and binary documents use the same API. Confirm attachment behavior, URLs, MIME types, and file limits. Protect mappings against optional fields, new enum values, API version changes, and date, currency, and timezone differences.

Testing and observability

Use representative invoice, vendor, purchase-order, and payment payloads for contract testing. Record request identifiers, response status codes, resource IDs, timestamps, and workflow outcomes so failed submissions and reconciliation gaps can be investigated.

Why use Martini instead of scripts or point-to-point integrations?

Orchestration beyond a single API call

Martini coordinates authentication, lookups, validation, transformation, business rules, target writes, and reconciliation in workflows rather than embedding these concerns in isolated scripts.

Reusable and maintainable integration assets

Teams can expose normalized APIs, reuse workflow logic, centralize mappings, and support both event-driven processing and scheduled polling when AvidXchange notification coverage is partial.

Operational control

Martini provides structured error handling, retry paths, checkpointing, logging, and environment-specific configuration so invoice and payment integrations can be operated and evolved without creating a separate point-to-point implementation for every target.

Frequently asked questions

How can AvidXchange be integrated with enterprise systems?

AvidXchange can be integrated primarily through its REST APIs, with OAuth-based authorization and selected webhook-style or event-notification capabilities. Enterprise workflows commonly exchange Invoices, Vendors, Purchase Orders, Payments, and account context with ERP, accounting, and property-management applications. Scheduled incremental polling may be required where event coverage is unavailable.

Can Martini integrate with AvidXchange?

Yes. Martini can consume AvidXchange REST APIs, authenticate using the customer’s provisioned OAuth arrangement, receive supported webhook-style notifications through an exposed API, schedule incremental synchronization, transform payloads, and coordinate writes to downstream systems.

Do I need a connector to integrate AvidXchange with Martini?

No. A dedicated AvidXchange connector is not required. Martini can integrate using AvidXchange’s confirmed native REST APIs, supported event notifications, OAuth authorization, and any other customer-specific endpoints documented during onboarding.

Is there any extra Lonti cost to integrate AvidXchange with Martini?

Lonti does not charge an additional per-connector or per-vendor fee to integrate AvidXchange. The integration is subject to the provisioned capacity of the Martini environment. Separate costs may apply from AvidXchange, cloud infrastructure, or other third-party systems based on subscription, API usage, and deployment model.

Which AvidXchange integration methods should be used?

REST APIs are the primary method to verify and use for new integrations. Selected webhook-style notifications can support event-driven processing, but coverage must be confirmed for the required object and event. Use scheduled, paginated, incremental API calls for unsupported or incomplete notification coverage. GraphQL and SOAP are not currently confirmed for AvidXchange.

Are AvidXchange webhooks available for invoice and payment events?

AvidXchange supports webhook-style or event-notification capabilities for selected scenarios, but availability should not be assumed for every invoice, vendor, approval, or payment transition. Martini can receive confirmed notifications and retrieve the authoritative resource; polling is the fallback for unsupported events.

How does synchronization and data mapping work?

Martini can use event notifications or scheduler-triggered REST workflows to retrieve AvidXchange data incrementally. It maps actual AvidXchange objects such as Invoices, Vendors, Payments, and Purchase Orders into canonical and target schemas, normalizes statuses and dates, and preserves external identifiers for reconciliation.

How are errors, retries, duplicates, and API façade requirements handled?

Martini workflows can distinguish validation failures from transient HTTP errors, apply controlled retries with backoff, record correlation and resource identifiers, and use stable external references or idempotency values where supported to prevent duplicates. Martini can also expose a REST API façade that presents a normalized contract while orchestrating AvidXchange calls behind it.

Related Martini documentation

APIs

Events

Workflows

Security

Operations

Connect AvidXchange with your enterprise systems

Use Martini to orchestrate AvidXchange API integrations, synchronize AP data, process supported events, and maintain reliable invoice and payment workflows across your application landscape.

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