In the borrower category you’ll find a parameter for setting the Global ID.
This is used with Auto add borrower in the General Circulation Parameters. When a new borrower account is automatically created, we try to find a category in the new institution with the same Global ID as the borrower's category in the old institution.
It's also used in the scope of global reservation policies.
To set the global ID for a borrower category:
The global category codes are held in the GBC table. You can maintain this table using the Table Manager.