In the InterCompany function, Comp.A(purchase) - > Comp.B(sale).

A SalesOrder is automatically created in Comp.B, but purchase can be deleted in Comp.A even though Comp.B has already been shipped.

Since it has already been shipped, I would like you to be unable to delete purchase in Comp.A.

(It may be possible to delete it after processing the understanding in Comp.B)