Whether you're upgrading the signatures for subscription users for the first time or you prefer credit mode, it's very easy to set their signatures.
- Go to Users page and be sure you're switched in Credit mode view (the checkboxes will be orange).
Select the users whose signature you wish to set.
- Now click Set signatures below the list of users.
Confirm the operation.
- Users have to reload their Gmail browser tab to make the new signature appear.