Foreign Key Mapping Object Type

A foreign key mapping is an object that identifies a foreign key column in the destination table. EIM pulls data from an interface table and enters it into this foreign key column. EIM stores a foreign key as a numeric row ID value in a data table. To use data from an interface table in a foreign key, you must map the interface column to a combination of user key columns in the destination table rather than directly to the foreign key column.

The following image shows an example of how a foreign key map references a data table. To access the row, Siebel CRM uses a combination of attribute columns in the destination table of the foreign key. EIM gets the foreign key value from that row. A foreign key mapping is not a one-to-one column mapping from an interface table to a destination table. The numeric foreign key does not exist in the interface table, so you cannot map it.