SAP Message AD341 - Key to table & changed, data exists (F1)

Diagnosis You have changed the key to the table in the ABAP/4 Dictionary.However, a physical table containing data already exists in thedatabase for this table. To ensure system consistency, the definitionof the database table must be adjusted to correspond to the logicaltable definition in the ABAP/4 Dictionary. Procedure Convert the table using the database utility (SE14). To do this,selection the Convert function in the utility for databasetables. The data in the table is kept when the table is converted.