Symptoms
Worklist control throws the following error:
K2 Worklist Control Not Working:
Exception message: 28026 K2:ADIFSsvc_stg_k2_sfd does not have permissions to impersonate user ADIFSlphillips
Diagnoses
Client dropped a K2 work list control onto a form. Nothing is appearing in the Worklist even thought items was assigned to user.
Resolution
The svc_stg_k2_sfd account is the Smartforms Designer Wab app pool identity. You need to grant this service account Impersonate rights via "K2 Workspace > Management > [server:port] > Workflow Server > Server Rights".