SAP Function Module search on KR_V
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KR_VAT_F4_TAXCODE_EXIT - search help for Tax Code of KR VAT Reporting
KR_VENDOR_ACTIVITY_RETRIEVE - To get the Activity of the Vendor
KR_VENDOR_SET_GLOBAL_DATA - To se the Vendor data
KR_VENDOR_UPDATE_DATA - To save when the vendor data is updated
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