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Portal Signatures are enabled by default, but can be hidden for a project with the Project Setting “Disable eSign for this Project”.
Notes:
Customers will be able to see their own and any other signatures on their requests (or requests shared with them).
Atlassian Users can sign from the Portal or full Issue screen on requests they have access to view and Edit. Advanced Security mode is enforced from the Portal the same as from the full Issue screen for Atlassian Accounts.
Signature audit comments are restricted to internal visibility so they will not be visible on the Portal.
Customers can only sign a request if they have not already signed it. An internal user with project admin can reset signatures if necessary to clear signatures.