SAP Message AP253 - Planning lock on WBS element &1 in assigned investment program

Diagnosis You want to change plan values for WBS element &V1&. An investmentprogram position is directly or indirectly assigned to this WBSelement. A planning lock is in effect for program type &V2&, approvalyear &V3& and authorization level &V4& in the requested plan version. System Response Planning for WBS element &V1& is not possible.