Can I edit a person's profile to apply the correct details in the signature?

Can I edit a person's profile to apply the correct details in the signature?

Yes. Zumpul has a 'People' module where you are able to find and edit a person's profile, these changes will reflect in the signature when you apply it, for detailed instructions view: https://support.zumpul.com/portal/en/kb/articles/401-update-a-user-s-profile-job-title-department-etc