BADI - MIGO

Hi all,

I have a requirtment that i need to validate the PO and Delivery Note no in MIGO transaction. I have written code in BADI - PAI Header. It's triggering when i hit enter and validating the value also. But the thing is when the error comes the screen goes to Non-editable mode.

My requirtment is when i try to hit enter second time the screen should come in edit mode to enter the current value for delivery note no. If anybody worked on the samething or in such cases plz suggest me how to overcome from this issue.

Thanks in advance.

Regards,

Saran