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3640215 - Error message M8_2 816 "Duplicate material entries are not allowed" is raised during invoice posting via BAPI - SAP ERP & SAP S/4HANA

Symptom

When using BAPI interface  (BAPI_INCOMINGINVOICE_CREATE, BAPI_INCOMINGINVOICE_CREATE1, BAPI_INCOMINGINVOICE_PARK, etc.), system raises error message  Error message M8_2 816: "Duplicate material entries are not allowed".


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Environment

  • Materials Management (MM)
  • SAP enhancement package for SAP ERP, version for SAP HANA
  • SAP S/4HANA

Product

SAP S/4HANA 2023

Keywords

bapi_incominginvoice_create, error m8_2 816, duplicate material entries, sap s/4hana, miro, materialdata, invoice posting, gr-based iv, duplicate check,  sap note 2036775, supplier invoice processing, direct material lines, purchase orders. , KBA , MM-IV-LIV-CRE , Entry MIRO , Problem

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