HWN023042E The secondary copy needed for migration does not exist.
Explanation
The secondary copy is needed for volume migration since it is the means by which migration is achieved. Without the secondary copy, the migration cannot complete.
Action
Look at job logs to determine why the volume that was to be added was removed. If an action was taken that removed the new secondary copy before the copy was synchronized, then this error will occur. It is recommended to retry the recommendation and submit it separately from other recommendations.