Logical System problem

HI everybody.

Can someone help me??

For company policies we have to change the name of a Logical System of a Business System in the SLD.

How can I refresh the Business System so the Integration Directory can see the new Logical System? Because when I check in the Business System there still appears the past Logical System.

(I don´t want to re-import or delete it, because there are too much communication channels configured)

Thanks in advance.

Regards

J. Ruiz