In S/4HANA system when user double-clicks vendor within a PO or via the menu to navigate to the vendor master, the system checks both the transaction MK03 and user’s authorization. S/4HANA uses Business Partners and requires MK03 authorization to navigate vendor master. If not, the system will return this error "You are not authorized to use transaction MK03" - Message no. 00172 appears.
Similar cases can happen at every transaction from where you can navigate to Business Partner (vendor and customer master related) and you might have missing authorization for XD* and / or XK* and / or MK* transactions.
MK01, MK02, MK03, XK01, XK02, XK03, XD01, XD02, XD03, MMPUR_VENDOR_DISPLAY, authorisation, authorization-check, authorization, check, BP, vendor master, customer master, Lieferantenstamm, Kundenstamm, , KBA , MM-PUR-PO , Purchase Orders , MM-PUR , Purchasing , MM-PUR-REQ , Purchase Requisitions , MM-PUR-PO-GUI , Userinterface - Purchase Orders , LO-MD-BP-CM , Customer Master , LO-MD-BP , Business Partners , LO-MD-BP-VM , Vendor Master , MM-PUR-REQ-GUI , Userinterface - Purchase Requisitions , MM-PUR-GF , Basic Functions , Problem
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