3575885 - Error "Enter a valid carrier type." happens when maintain carrier type in TW DRC solution

When maintain carrier type in TW DRC solution for eDocument, following error happens:

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Enter a valid carrier type.
Message no. EDOCUMENT_TW006

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SAP ERP, SAP S/4HANA

SAP ERP all versions ; SAP S/4HANA all versions

KBA , CA-GTF-CSC-EDO-TW , Document Compliance Taiwan , Problem

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