Every 15 sec Output Messages are created in VL01N/VL02N and labels are printed

Hello Friends,

I have developed a Label for Handling Unit and assigned the smartform in NACE configuration under Application Area "V6" with custom Output Type configured in system. Now we are facing an peculiar issue that for every 10 Seconds to 15 Seconds Output Type is automatically assigned to that Transaction VL01N/VL02N and so many times labels are printed for the same HU.

Friends please guide me how to correct the issue.

Thanks and Regards

Pradeep Goli