VMI Enabled / Consigned From Supplier

[abbas9001]

Hello All,

I would like to user encumbarence feature in Vision environment,
When I am trying to activate the encumbarance option it is asking be to uncheck the supplier items which are VMI Enabled or Consigned.

Now When am trying to uncheck the VMI Enabled checkbox it is giving me an error "FRM-40200-field is protected against update".

Please suggest me how can I get rid of this problem.

Abbas.