3433571 - Error during creating a new purchase order with more than one schedule dates from Manage supplier quotations

• When one  tries  to create a purchase order from a quotation by adding a new schedule line  in Manage supplier quotations app , upon  click  of 'Create' button , error is received "Raise_EXCEPTION", the Odata request processing has been abnormally terminated. 
• Additionally ,In backend, a dump RAISE_EXCEPTION in CL_PO_HANDLER_MM is been raised . 

• SAP Fiori
• SAP S/4HANA

F1991, MM_QTN_MAINS1, CL_PO_HANDLER_MM, MEPO_DOC_SCHEDULE_GET, Dump, RAISE_EXCEPTION ,Create. , KBA , MM-FIO-PUR-PO , Fiori UI for Purchase Orders , Problem