openapi: 3.1.0 info: title: ServiceTitan Accounting Adjustments API description: 'The Accounting API manages invoices, invoice items, AP credits, payments, payment terms, payment types, journal entries, journal entry details, tax zones, and GL accounts. Tenant-scoped; OAuth 2.0 + App Key. Integrates with QuickBooks, Sage Intacct, and Acumatica. ' version: 2.0.0 contact: name: ServiceTitan Developer Support url: https://developer.servicetitan.io/ email: integrations@servicetitan.com license: name: ServiceTitan Terms of Service url: https://www.servicetitan.com/legal/terms-of-service servers: - url: https://api.servicetitan.io/accounting/v2/{tenant} description: Production variables: tenant: default: '0000000' - url: https://api-integration.servicetitan.io/accounting/v2/{tenant} description: Integration (Sandbox) variables: tenant: default: '0000000' security: - OAuth2: [] AppKey: [] tags: - name: Adjustments paths: /adjustments: post: summary: Create Inventory Adjustment operationId: createAdjustment tags: - Adjustments requestBody: required: true content: application/json: schema: type: object properties: items: type: array items: type: object properties: skuId: type: integer quantity: type: number cost: type: number fromWarehouseId: type: integer date: type: string format: date-time memo: type: string responses: '200': description: Adjustment created components: securitySchemes: OAuth2: type: oauth2 flows: clientCredentials: tokenUrl: https://auth.servicetitan.io/connect/token scopes: {} AppKey: type: apiKey in: header name: ST-App-Key