SAP Message AA159 - Low value asset control should not be changed (Check your entry)

Diagnosis
You have changed the maximum amount check for low-value assets (LVA) inthe asset class.

System Response
This change is possible. However, it will effect all the assets youcreate in the future in this class.
Assets which have already been defined, will not be effected by thischange. If you want to change them, you must perform a mass change forall the assets.
Instead of changing the LVA control, you ought to consider creating anew asset class.