Removing Serial No. from inventory items

Hello!

We have some items , by mistake during the creation of those items track was selected to Serial No.

Now the problem is  Wheneever we  make any receiving from the P.O  for those items , there  a message comes  and serial no entry window opens. Is there any way to remove the serial no from such item , so that my user can easily make the receiving .

We want to assign the "Track to None " for all those items. Kindly answer if some solve such issue before.

Hilal Uddin

Regards,