Solution : https://service.sap.com/sap/support/notes/432957 (SAP Service marketplace login required)
Key words :
import support packagessapkh40b64sapkh45b42sapkh46b30sapkh46c21an sdpick idoc receives status 51, picking additional key words vl369, function module sd_idoc_input_picking interprets, error message vl369, information message vl369, idocs status 51, message vl369, picking confirmation, information message, item filtered
Related Notes :
| 406653 | Picking-relevancy with inbound IDoc WHSCON |