System Status Lock

On the same subject mentioned (raised by Pradip Patil ji) above the query is unanswered.

the current query is

WBS control is governed by various user status.

In my company the WBS has user status as

PEFI (Financial approval)

&

PEAP (Approval by Competent authority).

Single network is linked with single WBS (Level 2).

Since Network is independent object. The network component/costs can be changed any time.

The problem is that, "The network shall not be allowed for change,while the user status of WBs is PEFI". It shall be permitted for change only beyond PEAP user status or before attaining user status PEFI.

Kindly guide how this check can be made.

One Instance has been reported by our System Integrator HCL and was taken care by

Kindly guide for workaround