Solution : https://service.sap.com/sap/support/notes/731694 (SAP Service marketplace login required)
Key words :
enqueue function module 'enqueue_ersenqueue', 0b import support package 21, function module 'enqueue_ersenqueue', = 25 byte long logid, abap stack trace, enqueue-dequeue-manager, flag'sm21-logs, import support package 15, 50 import support package 04, 0b support package 21
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