Pop-up displayed multiple times in BADI

Hello Gurus,

I have implemented BADI to display pop-up messages on QM02 screen on change in value of a field. My problem is that the popup is displayed multiple times because of multiple calls of the BADI after the value is change.

Please someone can put some light on its resolution. I have written a generic problem statement here, please ask for details if required.

Thanks,

Maninder SA