Solution : https://service.sap.com/sap/support/notes/668171 (SAP Service marketplace login required)
Key words :
open items exist, application mam, disconnection order, block message, contract account, terms eewm_mam, isu_db_get_due_and_discrel_pos reason, program error, source code, support package
Related Notes :
672781 | MAM for Utilities 1.0 - composite SAP Note |