2606651 - KBA Duplicate entries in MARC table in S4 HANA

• Duplicate entries in Table MARC
• ITAB_DUPLICATE_KEY Shortdump in transaction /SCWM/LS03:
  

  Runtime Errors ITAB_DUPLICATE_KEY
  ABAP Program /SCWM/CL_AF_MATERIAL_S4=======CP
  Application Component SCM-EWM
  An attempt was made to insert an entry into table
  "\CLASS=/SCWM/CL_AF_MATERIAL_S4\METHOD=/SCWM/IF_AF_MATERIAL~GET_MARC_FIELDS\DATA=LT_MARC_BUFFER". Updating
  
  Code: SELECT werks matnr xchpf prfrq ssqss FROM marc

• Duplicate entries are created in table MARC when using Function Module /SAPSLL/API_COMCO_CLS_DISTR.

• SAP S/4HANA for International Trade
• SAP S/4HANA 1610 (or higher release)
• Product Classification

S4CORE, stawn, S4 HANA, SAP S/4 HANA, v_t604, re-classify, SAP S/4HANA on-Premise Edition 1610 FPS 02, 1709, upgrade, NSDM_V_MARC, MARC, material master, product, STCTS , NOSCT, /SAPSLL/V_NOSCA foreign trade data,  SD, MM, FT, 1611, 1511, Assign Numbering Scheme for Commodity Codes to Country, Governance, Risk and Compliance, International Trade, Classification not saved, /SAPSLL/T604R3, SAP Global Trade Services, GTS, Materialstammdaten, Material, Statistische Warennummer, Außenhandelsdaten, Nummernschema zuordnen,  MM02, Klassifizierung, Klassifizieren, Re-Klassifizierung, Re-Klassifizieren, Reklassifizieren, Reklassifizieren; Material Master Change Log; Änderungsprotokoll, /SAPSLL/API_COMCO_CLS_DISTR, method CREATE_CLASSIFICATION of class /SAPSLL/CL_PRCLS_AP, MARITC, transaction /n/SAPSLL/CLSNR_01 /SAPSLL/CLSNR_01, MMBE, MM02, MM03 , KBA , SLL-ITR-CLS , International Trade Classification , Problem