System lookup tables themselves cannot be deleted. However, you can delete items in a system lookup table if they are not needed. TeamConnect automatically checks to make sure that each item is not being referenced by records. If an item is being used, you are prompted to confirm its deletion.
You must consider the impact of deleting lookup table items—especially on an existing system that has records using the item. If the tree position of the item is used by rules or reports, you must consider the impact of deleting it and make any necessary modifications. You may be able to inactivate or rename the item rather than delete it.
Important: If you delete an item, all record data referencing it is lost. If you delete a node, all of its sub-levels and their data entries are also removed.