You could use Category trees (Category is an entity in Product Catalog API TMF620).
Additionally, if there are specific add-ons that are relevant for offerings, you could create bundled offerings including those add-ons, or alternatively refer to add-ons via a product offering relationship.
Hope it helps
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Jonathan Goldberg
Amdocs Management Limited
Any opinions and statements made by me on this forum are purely personal, and do not necessarily reflect the position of the TM Forum or my employer.
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