New: MCS Java OpenAPI Client Integration Guide
Date: February 5, 2026
A new guide is now available that explains how to generate a strongly typed Java client for Walmart Multichannel Solutions (MCS) APIs using the provided OpenAPI specification. This approach simplifies integration by enabling automatic client and model generation, reducing manual development effort.
For more details, refer to the Multichannel Solutions Java OpenAPI Client Integration Guide.
What’s changed
- New step-by-step guide for generating a Java client using OpenAPI Generator
- Instructions for creating strongly typed Java models and API clients directly from the MCS OpenAPI specification
- Example usage for calling MCS APIs with the generated client
Why it matters
- Reduces manual coding and integration complexity when working with MCS APIs
- Improves developer productivity and consistency through strongly typed models
- Minimizes errors by aligning client code directly with the OpenAPI definition
- Accelerates onboarding for Java-based integrations
Next steps
- Review the new Multichannel Solutions Java OpenAPI Client Integration Guide
- Generate a client from the latest MCS OpenAPI specification
- Test API calls using the generated client in a sandbox or non-production environment
- Incorporate the generated client into existing or new integrations

