CIG - tenantID update

Hi Expert team:

About changing this parameter:

Application.Catalog.IS.TenantConfig

for example we add new catalog subscription or we change the frequency.

What is the correct steps to do before and after?

1.Do we need to deactivate web service for stock before changing this parameter or not?

2.And after we change this parameter, do we need to run network set up interface in SaP again?

3.can we just remove the previous subscription name and replace with new one?

For example first time catalog name is catalog1 , the we just replace with new name catalog2.

Pls advise. Many thanks.