SAP Message AD488 - Entry 'Convert DB table &' made for mass processing

Diagnosis
Only the ABAP/4 Dictionary version of the object is activated duringthe activation process (logical object), provided a change to thestructure has not necessitated the conversion of data.
If fields were simply added to the table (ADD FIELDS), the activatoralso adapts the database table (no data conversion is necessary).
However, if data conversion is necessary or if there are no ADD FIELDS,this action is marked for a batch run. The table to be converted is notactivated. Conversion and activation are carried out by another programthat is started automatically in the transport or update procedureafter activation.