BusinesSystem with blank Logical System Name

Hi All, I add a new client to an WebAsABAP Technical System using :

SLD >TechnicalSystems >myTechnicalSystem >Clients >AddNewClient

ClientNumber: 123

LogicalSystemName: SIDCLNT123

and than I set the new Client number to the old businessSystem, using:

SLD >BusinessSystems >myBusinessSystem >Integration >Change...-->210 of TST

Now in the Integration tab on myBusinessSystem the LogicalSystemName is blank.

any suggestion please.

Tnk

Domenico