Purpose
This API allows the Buyer to create, retrieve, update Appointment and retrieve Work Orders as well as receive notifications about Appointment and Work Order updates.
Status
This API has been approved as a published MEF-standardized API.
Business Requirements & Use Cases
This API is based on:
MEF 113 Trouble Ticketing Requirements and Use Cases
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 137 LSO Cantata and LSO Sonata Appointment and Work Order Management API - Developer Guide
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?
Test Requirements
There are no test requirements documented for this API.
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.
