In Oracle Integration Generation 3, you can extend (customize) an integration in an accelerator project by adding and configuring an extension group. An extension group enables you to extend 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 more details on how to perform these changes, refer to the Manage a Project section in Using Integrations in Oracle Integration 3 at: https://docs.oracle.com/en/cloud/paas/application-integration/integrations-user/manage-project.html#GUID-BD7207BB-19D8-42D1-8D9E-7FC4D50E1B57

In addition, a knowledge base article is available at: https://support.oracle.com/epmos/faces/DocumentDisplay?_afrLoop=407954934694303&id=3017378.1&_adf.ctrl-state=611abf54g_77