Post Split/Serialize - Copy NC Data 
You can use the NC999 hook point activity to copy the nonconformance (NC) data from the original SFC number to the new SFC numbers that result from a serialization, split, or relabel (see SFC Number).
Caution
NC data is copied only if the Copy NC Data system rule is set to true and this activity is enabled at the site level.
End of the caution.
This activity is commonly used with POST_SPLIT and POST_SERIALIZE hook points.