Skip from subscreen SAPLV51G 6010 in VL02N

Hi experts,

The users needs the following issue: in tx. VL02N, when they go to "Processing of handling units" (button "Pack"), in some cases a popup message should appear. This goes ok, I did it in badi BADI_HU_MAIN, method ASSIGNMENT_CHECK using module function POPUP_TO_CONFIRM. If the answer is "cancel" I need to skip from this subscreen and navigate to the main screen of VL02N. Set screen and leave to screen don't work, I've read that it's not possible to do what I need, is that correct ??

Thanks in advance,

Maria