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Documentation
This Help Center provides documentation on all aspects of the HCL Commerce+ Transaction Server product, from installation and deployment to operating and customization.
Migrating
The following topics show how to migrate an existing HCL Commerce Version 9.1 environment to Commerce+ Transaction Server.

Documentation
This Help Center provides documentation on all aspects of the HCL Commerce+ Transaction Server product, from installation and deployment to operating and customization.
- Overview
  Welcome to the HCL Commerce+ Transaction Server overview. Explore these feature overviews to learn how Commerce+ Transaction Server operates. Refer to the related links listed at the end of each topic to access expanded product documentation.
- Deploying
  This section provides details on deploying HCL Commerce+ Transaction Server. It explains how to download the Docker images and Git bundles that comprise the product, how to create a minimal environment, and how to plan for a full deployment. It details supported software versions, patches, and configurations to ensure the platform performs well.
- Migrating
  The following topics show how to migrate an existing HCL Commerce Version 9.1 environment to Commerce+ Transaction Server.
  - Migrating 9.1 databases
    Migrate HCL Commerce v9.1.x.0 databases (Db2 or Oracle) to HCL Commerce+ Transaction Server using the wcim_ant utility. It includes guidance for Development, Staging, and Production database environments.
  - Migrating the HCL Commerce Version 9.1 code
    Migrate HCL Commerce Version 9.1 code using the guidance below. As part of this migration, remove all IBM-related code, such as com.ibm.commerce, and include only the code that is proprietary to your organization.
  - Migrate Solr search to Commerce+
    Migrate your Solr-based search solution from HCL Commerce Version 9.1 to Commerce+ Transaction Server. This is the first step in adopting Commerce+ Transaction Server, letting you run your existing customizations on the new runtime with your current database before you optionally move to PostgreSQL.
  - Migrate Elasticsearch to Commerce+
    Migrate your Elastic-based search solution from HCL Commerce Version 9.1 to Commerce+ Transaction Server. This is the first step in adopting Commerce+ Transaction Server, letting you run your existing customizations on the new runtime with your current database before you optionally move to PostgreSQL.
  - Migrating 9.1 JSP store to Commerce+
    Migrate custom downstream CRS extension repositories to Java 21, Spring 6, and Open Liberty 26+. Update Enterprise APIs to Jakarta EE and modernize your build toolchain.
- Operating
  The topics in this section focus on tasks that are performed by business users, marketers, and customer support representatives to connect with partners and attract and satisfy customers.
- Administering
  The site administrator performs the tasks needed to support day to day operations of the Commerce+ Transaction Server site.
- Extending
  Using Commerce+ Transaction Server's xC programming model, you can use HCL-provided extension points to extend existing Commerce logic. You can implement these extensions with the xC Customization toolkit provided by HCL. Commerce+ also provides Packaged Business Capability integrations that extend the product's reach and functionality.
- Securing
  These topics describe the security features of Commerce+ Transaction Server and how to configure these features.
- Performance
  Topics in the Performance section describe the means by which to plan, implement, test, and re-visit the optimization of Commerce+ Transaction Server site performance.
- Troubleshooting
  Topics in the Troubleshooting section highlight common issues that are encountered with Commerce+ Transaction Server, and how they can be addressed or mitigated.
- Reference
  Topics in the Reference section contain all of the Commerce+ Transaction Server reference documentation.

Migrating from HCL Commerce Version 9.1 to HCL Commerce+ Transaction Server

The following topics show how to migrate an existing HCL Commerce Version 9.1 environment to Commerce+ Transaction Server.

Note: Migration from HCL Commerce version 9.1.20.0 or later is supported.