# Microsoft Dynamics 365 Business Central — Accounting API: overview > Canonical URL: https://developers.apideck.com/apis/accounting/microsoft-dynamics-365-business-central/overview Microsoft Dynamics 365 Business Central is an enterprise resource planning (ERP) system focused on mid & large scale businesses. - Status: live - Authentication: oauth2 - **account type required:** Business Central online (SaaS), any edition — on-premises deployments are not supported. - **apideck credentials available:** true - **apideck credentials note:** For testing: OAuth shows "Apideck" as the requesting application. Production is bring-your-own Entra app. - **authentication note:** Authorization Code flow via a Microsoft Entra ID app registration. - **consumer access level:** Any Business Central user can authorize; a Microsoft Entra admin grants consent once per tenant. - **costs:** Microsoft publishes no separate API pricing; API access comes with the consumer's Business Central licence. - **difficulty:** moderate - **difficulty reason:** Self-Service OAuth + Required Per-Consumer Environment & Company Setup - **environment notes:** - **description:** Business Central uses one credential structure for both: the Environment the consumer selects during setup (Sandbox or Production) decides which instance is accessed, and there are no separate development credentials. To test, use a free 30-day Business Central trial, a sandbox environment included with an active Essentials or Premium subscription (CRONUS demo data or a copy of production data, created in the Business Central admin center), or a Microsoft Business Central Partner Sandbox license. Per-user rate limits apply in every environment, so take care when testing against a company that holds production data. - **environment:** Single environment (sandbox and production share the same credential structure) - **important to know:** Purchase orders post as header-only documents: line items are accepted on write but never reach Business Central. Reads return line items correctly. Posting-group fields (Vendor Posting Group, and the G/L Account Card's posting groups) are not settable through the API: configure them in Business Central — or link a Vendor Template in API Setup — before creating suppliers, bills, or expenses. Two silent-breakage traps: an Entra client secret expires after at most 24 months (rotate it, or every connection on that app stops working), and a refresh token expires after 90 days of inactivity, so dormant connections need re-authorizing. - **partnership note:** Any Microsoft Entra ID app registration can connect; there is no partner programme or app review. - **partnership required:** false - **partnership url:** https://learn.microsoft.com/en-us/entra/identity-platform/quickstart-register-app - **rate limits:** 6,000 requests per user per 5-minute sliding window; 5 concurrent requests per user. - **responsibility matrix:** - **apideck:** Docs provided - **area:** Register App in Microsoft Entra - **customer:** ✓ (or use Apideck credentials) - **apideck:** Docs provided - **area:** Grant Admin Consent - **consumer:** ✓ (Entra admin) - **area:** Rotate Client Secret - **customer:** ✓ (before expiry) - **area:** Add Credentials to Apideck - **customer:** ✓ (or use Apideck credentials) - **apideck:** Handles OAuth flow - **area:** Authorize Connection (OAuth) - **consumer:** ✓ - **apideck:** Prompts in Vault - **area:** Select Environment & Company - **consumer:** ✓ - **apideck:** Maintains connector - **area:** Build via Unified API - **customer:** ✓ - **apideck:** ✓ Automatic - **area:** Token Refresh - **apideck:** Logs & alerts - **area:** Monitor Connections - **consumer:** ✓ Can revoke anytime - **customer:** ✓ Via Apideck Dashboard - **sandbox available:** true - **sandbox note:** Free 30-day trial (fastest route), or up to three sandbox environments included with an active Essentials or Premium subscription. - **sandbox url:** https://learn.microsoft.com/en-us/dynamics365/business-central/admin-sandbox-environments - **supported resource categories:** - **name:** Core Financial - **resources:** ledger-accounts journal-entries tax-rates tracking-categories bank-accounts company-info companies - **name:** Accounts Receivable - **resources:** invoices credit-notes payments customers invoice-items - **name:** Accounts Payable - **resources:** bills bill-payments bill-credit-notes purchase-orders suppliers expenses - **name:** Organizational - **resources:** locations employees - **name:** Other - **resources:** attachments - **webhooks:** No webhooks — Business Central changes must be polled. ## Supported resources [Accounting data model](/guides/accounting-data-model.md) - **custom field support:** false - **downstream id:** sales-invoice - **downstream name:** Sales Invoice - **id:** invoices - **name:** Invoices - **status:** live - **custom field support:** false - **downstream id:** purchase-invoices - **downstream name:** Purchase Invoices - **id:** bills - **name:** Bills - **status:** live - **custom field support:** false - **downstream id:** bill-payments - **downstream name:** Bill Payments - **id:** bill-payments - **name:** Bill Payments - **status:** live - **custom field support:** false - **downstream id:** sales-credit-memos - **downstream name:** Sales Credit Memos - **id:** credit-notes - **name:** Credit Notes - **status:** live - **custom field support:** false - **downstream id:** bill-credit-notes - **downstream name:** Bill Credit Notes - **id:** bill-credit-notes - **name:** Bill Credit Notes - **status:** beta - **custom field support:** false - **downstream id:** customer-payment-journals - **downstream name:** Customer Payment Journals - **id:** payments - **name:** Payments - **status:** live - **custom field support:** false - **downstream id:** items - **downstream name:** Items - **id:** invoice-items - **name:** Invoice Items - **status:** live - **custom field support:** false - **downstream id:** customers - **downstream name:** Customers - **id:** customers - **name:** Customers - **status:** live - **custom field support:** false - **downstream id:** vendors - **downstream name:** Vendors - **id:** suppliers - **name:** Suppliers - **status:** live - **custom field support:** false - **downstream id:** accounts - **downstream name:** Accounts - **id:** ledger-accounts - **name:** Ledger Accounts - **status:** live - **custom field support:** false - **downstream id:** purchase-orders - **downstream name:** Purchase Orders - **id:** purchase-orders - **name:** Purchase Orders - **status:** live - **custom field support:** false - **downstream id:** goods-receipts - **downstream name:** Goods Receipts - **id:** goods-receipts - **name:** Goods Receipts - **status:** beta - **custom field support:** false - **downstream id:** tax-groups - **downstream name:** Tax Groups - **id:** tax-rates - **name:** Tax Rates - **status:** live - **custom field support:** false - **downstream id:** fiscal-periods - **downstream name:** Fiscal Periods - **id:** fiscal-periods - **name:** Fiscal Periods - **status:** beta - **custom field support:** false - **downstream id:** trial-balance - **downstream name:** Trial Balance - **id:** trial-balance - **name:** Trial Balance - **status:** beta - **custom field support:** false - **downstream id:** company-information - **downstream name:** Company Information - **id:** company-info - **name:** Company Info - **status:** live - **custom field support:** false - **downstream id:** locations - **downstream name:** Locations - **id:** locations - **name:** Locations - **status:** live - **custom field support:** false - **downstream id:** companies - **downstream name:** Companies - **id:** companies - **name:** Companies - **status:** beta - **custom field support:** false - **downstream id:** dimensions - **downstream name:** Dimensions - **id:** tracking-categories - **name:** Tracking Categories - **status:** live - **custom field support:** false - **downstream id:** attachments - **downstream name:** Attachments - **id:** attachments - **name:** Attachments - **status:** live - **custom field support:** false - **downstream id:** journal-entries - **downstream name:** Journal Entries - **id:** journal-entries - **name:** Journal Entries - **status:** live - **custom field support:** false - **downstream id:** expenses - **downstream name:** Expenses - **id:** expenses - **name:** Expenses - **status:** live - **custom field support:** false - **downstream id:** journals - **downstream name:** Journals - **id:** journals - **name:** Journals - **status:** beta - **custom field support:** false - **downstream id:** bank-accounts - **downstream name:** Bank Accounts - **id:** bank-accounts - **name:** Bank Accounts - **status:** beta - **custom field support:** false - **downstream id:** employees - **downstream name:** Employees - **id:** employees - **name:** Employees - **status:** beta An omitted operation list does not establish operation support. Verify the selected operation in the coverage matrix. [API reference](https://developers.apideck.com/apis/accounting/reference.md) · [Coverage matrix](https://developers.apideck.com/apis/accounting/coverage)