Symptom
The function 'Invite anyone for feedback' doesn't work anymore. I sent a person the following link https://editor.signavio.com/p/editor?id=2f6cbe85cb88469593685xxxx and he needs to log into the system first to comment on the model.
Resolution
You cannot reach a model as an external user with the link you provided. To send an invitation to external partners or users navigate to 'Share' in Signavio Explorer and select 'Invite anyone for feedback'. When you use this function via explorer the person you invite would get a link similar to below in their email and will need to use that every time they want to comment on that particular model:
https://app-us.signavio.com/p/portal/<<Model-ID>>?comment&authkey=<<VeryLongAuthorisationCode>>
You can also use the new 'share' function from the new Editor.
Keywords
KBA , BPI-SIG-CA-SEC-UM-IN , Invitations / License Management for SAP Signavio , How To