Solution : https://service.sap.com/sap/support/notes/131896 (SAP Service marketplace login required)
Key words :
transaction se11 change lock object eatpenqe, atp logic return confirmable quantities, generate lock object eatpenqe, parallel availability checks based, additional key words atp, change structure atpenq_ke, function key enq_entries_delete_all, quantity lock indicator, attached advance corrections, delete field 'dbname'
Related Notes :
112475 | ATP: Deletion of the quantity lock indicators |