can't delete Routing Codes by item
I need help.
I have manufacture item for produxtion order.
That item relate with routing management.
and now I want change this type of item from manufacture to purchase item.
then I'm delete from maintain routing for this item, for this session maintain routing tirou2110m000 is success for delete that routing.
now I have problem from session maintain routing codes by item, I can't delete code of routing then show up warning that record being used in other table.
How I can track this problem.