Using Item catalog categories in validation and assignment rules

Summary

Using Item catalog categories in validation and assignment rules

Content

Hi all,

Do we have flexibility in item rules to perform validation based on item catalog category assignment?

Requirement 1: Validate if the item catalog category for an item has been changed or not (using CHANGED functionality)
Requirement 2: Validate if the current item catalog category for an item is Null or Not Null (using !isNull or isNull functionality)
Requirement 3: Derive/fetch the Level 3, 4 and 5 categories from an item catalog category assignment (e.g., [Item].[Catalog].[category] == 'ABC')

Thanks,

Vijay