3081141 - Purchase Order doesn´t change to Edit mode

You open the App Manage Purchase Order or Change Purchase Order Advanced.

The purchase order can´t be edited even when the User has the roles assigned.

2108 SAP S/4HANA Cloud Public Edition

MM_PUR_S4_PO_OPEN, class APPL_MM_PUR_PO, 096 , KBA , MM-FIO-PUR-PO , Fiori UI for Purchase Orders , MM-PUR-PO , Purchase Orders , Problem