2372209 - Purchase order opens in the Advanced (WEBGUI) app - SAP Fiori & SAP S/4HANA

• In the Manage Purchase Orders app, some purchase orders are displayed in the app itself and can be changed from there, but others are open in the Display Purchase Order - Advanced (WEBGUI) app.
  In old versions, you may receive a pop-up message stating: "Purchase Order is of type "Purchase Order - Advanced". Purchase Order is processed in advance mode in a different browser tab.".
• "PO XXXXXXX has unsupported features and can only be edited in 'Advanced' app" when clicking Edit after navigating from the Monitor Purchase Order Items to the Manage Purchase Orders app.

S/4HANA, CL_MM_PUR_PO_MAINTAIN_FEAT_CHK, CHECK_HEADER_FEATURES, CHECK_ITEM_FEATURES,  APPL_MM_PUR_PO033, APPL_MM_PUR_PO035, P, Project, manage, purchase, order, icon, advanced, purchase, order, unsupported, features, webgui, app, navigate, has, unsupported, features, can, only, be, edited, CL_MM_PO_FEATURE_ENGINE, , KBA , MM-FIO-PUR-PO , Fiori UI for Purchase Orders , Problem