It is recommended that you do not change the Default or Dictionary packs in Builder once an application has been built. Changing the specified Default or Dictionary packs might cause the database to initialize unintentionally without warning when the system is rebuilt. If pack changes are required, you should use either the SMU or the NA APPL_BLD_nn ALTER command (enter NA APPL_BLD_nn HELP ALTER in the MARC action line for full instructions) to make the changes, prior to regenerating the system.