<p>Retrieves available upgrade, downgrade, and swap (UDS) paths for customer subscriptions. This endpoint returns the product relationships configured for each subscription, including full product details and pricing information for target products. Use this to build self-service experiences where customers can modify their subscriptions.</p>

Fetch Subscription Product Relationships

Successfully retrieved product relationships for subscriptions

<p>Bad request - invalid or missing parameters</p>

**Production Environment** - Live production server for all customer-facing operations. Use this for production integrations with real customer data and transactions.

**Sandbox Environment** - Safe testing environment with sample data for development and integration testing. No rate limits apply. Data is reset weekly. Perfect for prototyping and QA testing.

Fetch Pricing Data for Subscriptions for Client Side Pricing Engine

nueapp

Flow in the Nue app which allows an admin user to configure bundle structure, pricing & product options

Bundle_Builder

Calculate Term

nue-api-docs

Nue API Documentation

Getting Started with Nue APIs

API Keys

Postman Collections

Customer Lifecycle APIs

Commerce

CPQ Revenue Lifecycle

Customer Lifecycle

Usage

Invoices

Credit Memos

Everything Billing

Export and Import

Query Nue Objects using GraphQL

GraphQL Relationship Traversal

GraphQL Aggregations

Manage Custom Fields

Nue Platform

MCP Servers

MCP Apps

Nue AI

Guides and Examples

Customers

Contacts

Products

Price Tags

Orders

Subscriptions

Term Calculations

Entitlements

Assets

Credits

Objects

Opportunities

Quotes

Change Quotes and Orders

Approvals

Line Attributes

Openapi-spec-lifecycle.json

Billing Schedules

Debit Memos

Collections

Payment Rules

Async Job

Salesforce Sync

Magic Link

Openapi-spec-billing.json

Nue on Salesforce System Settings

Order System Settings

Data Import & Export

Webhook Endpoints

Billing System Settings

Openapi-spec-admin.json

Layouts

Filters

Value Sets

Openapi-spec-metadata.json

Stripe Configuration

Metadata Mapping

Openapi-spec-stripe.json

Send for e-Sign

Quote PDF

Openapi-spec-esignature.json

API References