Solution : https://service.sap.com/sap/support/notes/1531703 (SAP Service marketplace login required)
Key words :
enable functional unit 'sap netweaver process integration, check local/remote sld access, suggested pi default user names, 'advanced adapter engine extended, pi service user names, pi service users exist, software component 'lm configuration', pi service users, pi <component> user, remote sld system
Related Notes :
| 1571772 | PI CTC: Step 'Check SLD Access for PIAPPLUSER' failed |
| 1309239 | Configuration Wizard: PI NetWeaver initial setup |