Purpose
This API allows the Buyer to check whether the Seller can deliver a product or set of products from among their product offerings at the geographic address or a service site specified by the Buyer; or modify a previously purchased product.
Status
This API has been approved as a published MEF-standardized API.
Business Requirements & Use Cases
This API is based on:
MEF 79.0.2 Amendment to MEF 79: Address Validation
All MEF LSO APIs are based on MEF standards describing the business requirements and use cases (i.e. business logic) implemented in the API.
Developer Guide
MEF 87 LSO Cantata and LSO Sonata Product Offering Qualification API - Developer Guide.pdf
MEF developer guides* provide detailed documentation to help developers implement APIs more quickly, including:
- Data model diagrams
- Sequence diagrams
- Explanation of use cases
- Examples
* API developer guides are available on GitHub. How do I access MEF GitHub?
Payloads
This LSO API can be blended with MEF-standardized, MEF-endorsed, and partner-specific LSO Payloads.
See the LSO Payload Catalog.
Test Requirements
This LSO API is included in the detailed test requirements document*:
MEF W92.1 Draft Release 2 LSO Cantata/Sonata Test Requirements
This document lays out general test requirements and specific test cases, enabling implementers of LSO APIs to build test harnesses for DevOps more quickly.
* LSO API test requirements are available on the wiki. How do I access the MEF Wiki?
Additional Details
MEF Forum became Mplify Alliance on 24 June 2025.
Mplify # Standards & SDKs were published on or after.
MEF # Standards & SDKs were published prior.
Implementation Support
Find assistance to accelerate your LSO API implementation through third-party LSO API Solution Providers on Mplify.net.
Implementation Partners
Find service providers ready to automate business with you using LSO APIs on the LSO Partners Directory on Mplify.net.
Blending LSO APIs
LSO APIs result from blending LSO Payloads into LSO Envelopes. Choose and combine exact combinations of LSO APIs and LSO Payloads into a single zip file for download using the Mplify LSO API Blending Tool.
LSO API Test Service
Implementations of this API can be tested against both Buyer and Seller emulators in the Mplify LSO API Test Service* to accelerate onboarding by partners.
* Mplify LSO API Test Service is only available to Mplify members.
API Certification
Implementations of this API can be certified as conforming to the business requirements and use case standard through the Mplify LSO API Certification program.
* Certification is only available to Mplify members.
Release Info
See the RELEASE NOTES tab at top of page.
Download the entire SDK release; see all LSO API SDK Releases.
API Schema
Find the YAML file for this API in the relevant TAB at top of page.
