The Business Process Operations dashboard is designed as a Web Dynpro component, therefore the corresponding HTTP services have to be activated.
In SAP Solution Manager, call the client-independent SICF transaction. Select the Service hierarchy type and choose Execute.
Navigate to /default_host/sap/bc/webdynpro/sap.
Activate all entries starting with ags_ri and ags_bpm, except ags_bpm_eval_time_schd and ags_bpm_jsm_migration_tst.
To activate an entry, in the context menu, select Activate Service.