The DFHDCT TYPE=GROUP macro can be used to migrate a group of transient data resources defined using the DFHDCT macro to the CSD file.
For migration purposes, DCTs must be link-edited at the current release level with AMODE(24) and RMODE(24). To ensure this, you must specify a DFHDCT TYPE=(INITIAL,MIGRATE) statement in your DCT. Failure to do so causes the DFHDCT macro to force AMODE(31), which results in errors when running DFHCSDUP. For more information about migrating transient data macro definitions to RDO, see PARTITIONSET definition attributes.