Can I edit a person's profile to apply the correct details in the signature?
401 - Update a user’s profile: job title, department, etc
You can use Zumpul to edit a person's profile, every change that you perform from Zumpul is synced to the Google Directory. This changes will reflect in the signature once you save and apply it.
How can I add a new user in Zumpul to apply a signature?
Zumpul users are based on the Google Directory in your domain, so that if you want to add a new person to set a signature, you have to create it first in your G Suite account, when the users sync you'll see the new user(s) in Zumpul and thereafter ...
208 - How to update a signature to a specific person
Sometimes you don't have the need to assign a signature to a whole bunch of people, instead you need to apply it to a single person, Zumpul gives you that ability, just search for the person, review the details and apply the signature.
I need to apply a signature to my IT department but a different one for my Finance department, is that possible?
Absolutely, Zumpul lets you apply a signature to the entire organization if you wish, but also you can create a template and assign it to a filtered group of people, say OU, Department, Location, etc, for more details, ...
Can I apply a signature to an email alias with Zumpul?
At this moment you can apply the signature to the primary email address only.