Ability to add custom fields to Candidate eSign for Offer Letter

Summary

Ability to add custom fields to Candidate eSign for Offer Letter

Content

Hello Experts!!!   I have a client that wants to know if it is possible to add a custom field or two for when the candidate eSigns their offer letter.  I have looked everywhere in the system and also back through some historical posts (although I may not have gone back far enough).  Is this possible?  Am I missing something?   Thanks!  Vicki Moening  Sr Principal Consultant  Cantera Global