Solution : https://service.sap.com/sap/support/notes/1067854 (SAP Service marketplace login required)
Key words :
inbound scheduler reason, attached correction instructions, successful queue activation, terms smq2 ready, created ready queues, ready queues, relevant queue, ready status, transaction smq2, processed automatically
Related Notes :
1324454 | qRFC scheduler is still set to WAITING status |
1051445 | qRFC scheduler does not use all available resources |