In the component objects that process the members of the parent group, the component that acts upon the field object that defines the nested group (in this case, the nested_grp field object) needs to have the Group option selected, not the Field option. This tells the component that this member of the parent group is actually a nested group.
After selecting the Group option, in the first entry field, enter the name of the field object that defines the nested group. In the second entry field, enter the name of the rule object that should process the nested group. This is the rule object discussed in “Building rule objects for a nested group.” For more information about this Group option, see Chapter 3, “Building Production Objects.”
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