SAP Message PV814 - Objects of type &1 cannot be maintained in basic transactions

Diagnosis You are attempting to edit an object of the type &V1& (key &V2&) inTraining and Event Management master data. This object type is flaggedwith a 'no maintenance' indicator, however. System Response The current transaction will be terminated. Procedure You must maintain the object type using the relevant transaction. Procedure for System Administration The object type &V1& is flagged with a 'no maintenance' indicator intable T777I (infotype 1000). If &V1& is not a standard object type, itmay be possible to allow maintenance for it by deleting the 'nomaintenance' indicator (field MAINT).