Solution : https://service.sap.com/sap/support/notes/511753 (SAP Service marketplace login required)
Key words :
system generates message xu056, post goods movements, system checks, goods movements, entry quantity, base quantity, terms kzwso, 1_2_1_error_free reason, product unit, rounding error
Related Notes :
612945 | XU056: BAdI for fine-tuned control of the one-to-one check |