3518839 - GL account mandatory in STO Purchase Order for Non Valuated Material

'Enter GL Account' error in Create Purchase Order - Advanced app when we create Stock Transfer Order- Purchase Order for Non valuated material with account assignment Q. System asks for GL account and it is unable to change the field status in 'Maintain Account Assignment Categories' SSCUI.

SAP S/4HANA Cloud Public Edition

G/L Account, sscui 'Maintain Account Assignment Categories', MM-PUR-GF-STO, S4HC, S4_PC, S4_1C, X4BC, Purchase order, STO, Non valuated material, account assignment Q, MM-PUR-PO, Create purchase order advanced, mandatory, optional, Enter GL Account, error, Stock Transfer Order STO, UB , KBA , MM-PUR-GF-STO , Stock Transfer , Problem