material xyz is not showing in the product class on the final order summary in fiori (BTP-PRD)?????how to solve this error

how ton write regression testing scenerio for to validate END OF SHIFT outcome???( major affected areas only need to test -user requirement)

how to validate (testing scenerios ) to test master data ( material ,BOM , routing) recieved in MES from s4 hana sap ????? need support on testing method

Can anyone suggest me to explain best real time scenerio of sap mm configuration most of businesses faced any two configurations difficulties & solutution for that., at the same time in customizations any two difficultie task and solution for that., ...