You can import customer items and customer item cross references from any source into Oracle Inventory and Oracle Engineering using the Customer Item and Customer Item Cross Reference Interfaces, as illustrated in the following diagram.

Before you use the Customer Item and Customer Item Cross Reference Interfaces, you must write and run custom programs that extract customer item and customer item cross reference information from your source system and insert it into the MTL_CI_INTERFACE and MTL_CI_XREFS_INTERFACE tables. After you load the customer items and customer item cross references into these interface tables, you run the Customer Item and Customer Item Cross Reference Interfaces to import the data. These interfaces assign defaults, validate data you include, and then import the new customer items and customer item cross references.