In Oracle Integration Generation 3, you can customize an integration in an accelerator project by adding and configuring an extension group.

An extension group enables you to customize your integration by adding invoke connections; stitch, for-each, switch, map, and integration actions; and global variables to the integrations in your accelerator project.

For details on how to perform these changes, refer to the Manage a Project section in the Using Integrations in Oracle Integration 3 documentation that is available at Oracle Help Center.

In addition, see the How To Extend Oracle Integration Cloud Gen3 Project (Doc ID 3017378.1) knowledge base article that is available at My Oracle Support.