"Valid To" Date at BOM Header level

Hi,

I would like to know how to set a "Valid To" Date at BOM Header level other than "12/31/9999".

By Default,system is giving "Valid To" Date as "12/31/9999". We can change "Valid To" Date using change number for BOM Components.

I used change number for setting "Valid To" at BOM Header, but i am not able to change the "Valid To" Date at BOM header.

I had searched this forum, but i could not find any thread related to changing "Valid To" Date at BOM header level.

Appreciate, if anyone came cross this requirement, please suggest me how to change "Valid To" Date at BOM header Level either with Change number or without change number.

Thanks in advance.