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Microsoft Project Assignments API

Manage resource assignments to tasks

Microsoft Project Assignments API is one of 16 APIs that Microsoft Project publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 14 JSON Schema definitions.

Tagged areas include Assignments. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, authentication docs, code examples, a JSON-LD context, and 14 JSON Schemas.

This API exposes 5 operations across 4 paths, and defines 3 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against a single base URL, https://{tenant}.sharepoint.com/sites/pwa/_api/ProjectServer.

5 operations 4 paths 3 schemas 1 DELETE3 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Base URL
https://{tenant}.sharepoint.com/sites/pwa/_api/ProjectServer
Authentication
OAuth 2.0
Resource Areas
1

Authentication & Security 1

Microsoft Project Assignments API declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (oauth2) using the authorizationCode flow, exposing 2 scopes. By default, every request must be authenticated.

  • oauth2 — OAuth 2.0 authentication via Azure AD for SharePoint Online

Paths & Operations 5

Across 4 paths, the API surfaces 5 operations — 1 DELETE, 3 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Assignments 5

Manage resource assignments to tasks

GET
/Projects('{projectId}')/Assignments
Microsoft Project List Project Assignments
listProjectAssignments 1 param → 200
GET
/Projects('{projectId}')/Draft/Assignments
Microsoft Project List Draft Assignments
listDraftAssignments 1 param → 200
POST
/Projects('{projectId}')/Draft/Assignments
Microsoft Project Create Draft Assignment
createDraftAssignment 1 param body → 201
DELETE
/Projects('{projectId}')/Draft/Assignments('{assignmentId}')
Microsoft Project Delete Draft Assignment
deleteDraftAssignment 2 params → 204
GET
/EnterpriseResources('{resourceId}')/Assignments
Microsoft Project List Enterprise Resource Assignments
listEnterpriseResourceAssignments 1 param → 200

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are Assignment (10 properties), AssignmentCreate (2 properties), AssignmentCollection (1 property). Each schema is shown below with its type and property counts.

AssignmentCreate
object
2 properties 2 required
AssignmentCollection
object
1 property
Assignment
object
10 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

microsoft-project-assignments-api-openapi.yml Raw ↑

Other APIs Microsoft Project publishes across the network.

Microsoft Project Online CSOM API
Microsoft Project OData Reporting API
Microsoft Project JavaScript API
Microsoft Project Calendars API
Microsoft Project Custom Fields API
Microsoft Project Enterprise Project Types API
Microsoft Project Event Handlers API
Microsoft Project Lookup Tables API
Microsoft Project Phases API
Microsoft Project Projects API
Microsoft Project Resources API
Microsoft Project Stages API
Where this information came from

This is an independent, third-party profile of Microsoft Project Assignments API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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