Symptom
A lot of external users have got a user on the workspace, but only specific network users should be able to access the workspace.
Cause
IP address filtering or trusted domains aren't active
Resolution
You can use IP address filtering or trusted domain so only people accessing through the correct network can access the workspace. The following links explain how to set both of those up,
Keywords
external users, ip address, filtering, trusted domain, network, signavio, process manager, access , KBA , BPI-SIG-CA-SEC-UM-AM , Access Management for SAP Signavio , Problem
Product
SAP Signavio Process Manager all versions