When inviting a new user with an apostrophe in the email address, via the new central user management interface , the email address is truncated.
ie. firstname.lastname@example.org becomes email@example.com
This is a known issue and has already been forwarded to our developers to get this fixed. If you are affected by this issue and want to be kept up to date about this issue, please create a ticket in the SAP Support Launchpad and reference the ticket number CS-3249
Current workaround: Please use user management interface via Process Manager.
KBA , BPI-SIG-CA-SEC-UM , User Management for SAP Signavio , How To