Using the current release of Adagio Inventory 8.1C (2011.07.13) where Bill of Materials are defined, I cannot replicate the situation with sample data where DataCare reports false errors on the active status of component items. Also, if a component item is marked with the inactive status, I do get this 'warning' in the integrity checks within Adagio Inventory:

BOM Master item aaa.aaa-aaa, BOM bbb, line 4, component ccc.ccc-ccc is not active.

Note that this is a 'warning' and not an 'integrity error' that requires fixing. If there is a concern that Adagio DataCare is not reporting the 'application warning' then I can forward this to development, but the integrity of the data is in fact clean.

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If you want to check the Active Item status of an IC Item, this field is available on the column editor - the first one if you sort the field list alphabetically from User Preferences. This field was not removed from the dictionary. If you find that any items have a 'blank' value for Active Item, then this is an error - likely caused by using an older version of Purchase Orders for Adagio to create items.