Solution : https://service.sap.com/sap/support/notes/1652285 (SAP Service marketplace login required)
Key words :
process composer spml client, ume spml service, symptom ume principals, apply ume note 1647157, trust information required, process composer dialogs, terms principal search, excluded owners dialog, identity browser reason, process composer
Related Notes :
1647157 | How to Set up Access to the SPML Service on AS Java |