Making fields Mandatory in Production Order Confirmation

Hi,

I need to make certain fields mandatory in Production Order confirmation screen in CO11N.

I am trying to do the same in CO86 - field selection for confirmation by maintaining required radio button checked and saving the settings. But there is no effect of it in confirmation in CO11N i.e. system is not asking to add values for mandatory fields and saving the confirmation without required fields.

Kindly provide inputs for the same whether any other config is there or I am missing something.

Thanks in advance.

Regards,

Tejas