BigChange
BigChange is an all-in-one field service and job management platform (CRM, job scheduling, live tracking, a mobile workforce app, job finance, and business intelligence) known as JobWatch. Its modern REST API - the BigChange DX API at https://api.bigchange.com - lets developers manage jobs, contacts and persons, quotes, invoices and purchase orders, stock, resources, users and vehicles, worksheets, and assets, plus subscribe to webhooks. Requests are authenticated with a Bearer JWT access token (obtained through BigChange's authentication proxy from a developer-portal API key) and scoped with a required Customer-Id header.
APIs
BigChange Jobs API
Create, retrieve, update, schedule, start, cancel, and report on jobs and job groups. Manage job line items, job stock, worksheets and answers, constraints, flags, and status hi...
BigChange Contacts and Persons API
Manage customer contacts and contact groups, put contacts on/off stop, set site access hours, and manage persons together with their data-consent history - the CRM core of the J...
BigChange Finance API
Manage invoices, quotes, purchase orders, and sales opportunities and their line items - create and update documents, mark invoices paid/sent, accept or reject quotes, and gener...
BigChange Stock and Inventory API
Manage stock items, stock details and suppliers, and read stock movement records - the parts and inventory used to complete field-service jobs.
BigChange Resources, Users and Vehicles API
Manage the mobile workforce and fleet - resources and resource groups, back-office users, and vehicles - that jobs are scheduled and dispatched against.
BigChange Notes and Worksheets API
Create and manage notes and note types with progress history, and read worksheets, worksheet groups, and worksheet questions used to capture structured job data on the JobWatch ...
BigChange Reference Data API
Read-only lookups that back the rest of the platform - VAT codes, nominal codes, department codes, product categories, job types, note types, and sales-opportunity stages and pr...
BigChange Asset Management API
Manage customer assets and their categories, attributes, images, and service schedules, plus service agreements and their activities - under the /asset-management/v1 path. Publi...
BigChange Webhooks API
List webhook subscriptions and inspect, retry, or clear failed webhook deliveries under /webhooks/v1. Webhooks are outbound HTTP callbacks (server-to-consumer POST), not a WebSo...