Solution : https://service.sap.com/sap/support/notes/521363 (SAP Service marketplace login required)
Key words :
include lcrm_upload_salesdocumentf02 - form fill_bapisditm short_text ls_bapisditm-short_text = ls_orderadm_i-description, include lcrm_download_btmbdoc_mapf32 - form fill_btm_orderadm_i, <<<<< delete ls_bapisditmx-short_text = gc_bapiupdate, <<<<< insert lv_r3_material = <ls_bapisdit>-material, function module crm_salesdoc_map_bapi2mbdoc, material text reason, solution implement notes 511074, crm server sends, material description, product description