Solution : https://service.sap.com/sap/support/notes/455665 (SAP Service marketplace login required)
Key words :
additional key words fi ale, message types fidcc1, sap enhancement f050s006, set parameter set_augbl_by_user, set field fi_document_item_augbl, attached advance correction, open item basis, account line items, ale-external, open items
Related Notes :
336394 | ALE FIDCC1/2: Documentation user exit 10, clearing by user |