I have added one custom tab with seven fields in the PO item level using the BADI 'ME_GUI_PO_CUST and ME_PROCESS_PO_CUST'.
Now i want to change the screen property dynamically. According to some calculation i need to change the customer fields in display mode and change mode. when ever it is in change mode i need to set the fields as mandatory.
How can i implement this logic using this BADI. Please help in solving this issue.