In SPI 7  you need to import to the hook_up_sub_libraries table as well

For the Hook_up_Item_Library table you need to link for your source file

HU_ITEM_LIB_NAME and HU_LIB_DESC

For the Hook-up Item Library table you need to link  HU_ITEM_LIB_NAM,

SUB_LIB_NAME, SUB_LIB_DESC, SUB_LIB_FLG  columns (Default sub library flag should be ‘A’).

The id of the default Hook-up Item Library needs to be added in the plant table.

To be able to see the library name and the sub library in the GUI  you will also need to insert new rows to the table hook_up_sub_libraries with the relevant plant ID  and all the HU_ID  from the hook_up_table and the item library id and item sub library  id .