Update Asset through Web ADI

Hi,

We are making use of WEB ADI's for updating the Assets. In the Update Asset layout the Expense Account is a mandatory field which we want to make it as optional and not mandatory. I was trying to look for options to achieve this. Tried to update the Layout using Desktop Integrator but I could not find the option.

I made the Expense Account field optional by updating the BNE_INTERFACE_COLS_b table but still when I try to update the asset using web adi it gives me error. So am not sure if this is the right approach for updating the layout.