Solution : https://service.sap.com/sap/support/notes/769704 (SAP Service marketplace login required)
Key words :
symptom sap mobile engine 2, contact sap development support, username type sy-uname, newly created function group, username = sy-uname, client & j2ee me2, required function moduleslower, 1 sso support reason, function modules manually, function module me_get_current_user_id
Related Notes :
| 839875 | ME2.1 Single Sign-On (SSO) functional enhancements |
| 820198 | SSO problems when synchronizing from the application |
| 779477 | SAP ME2.1: Improved SSO support for Application Sync |
| 769090 | ME Sync Servlet 2.1 SP 03 Patch 03 |