Solution : https://service.sap.com/sap/support/notes/662004 (SAP Service marketplace login required)
Key words :
data element opbel_kk field opupk, attached source code correction, data element opupk_kk, double open posts, source code, opupk reason, field opbel, application 'mam, support package, fields opbel
Related Notes :
672781 | MAM for Utilities 1.0 - composite SAP Note |